Sometimes, things happen in the classroom that you just let go. You shake your head, move on, and don't spend another minute thinking about them.

But then there are the other ones.

The things that happen that, for whatever reason, stick with you.

There was one day in my classroom when something happened that I probably should have forgotten about years ago.

But I haven't.

In fact, I still think about it to this day.

It all started with a water bottle.

It was a normal day in the classroom. I was talking to the class and we were having a discussion about a topic that, quite frankly, I don't remember.

I do, however, remember what happened next.

It was a hot day, and the air was rather dry. I had just opened a new bottle of water and taken only a few sips before I started making my way around the classroom.

The students were eager to join the discussion, so I wandered up and down the rows of desks, stopping here and there as different students shared their thoughts.

Every once in a while, I'd pause and take a drink.

And another.

And another.

As the discussion intensified, so did my thirst.

That water bottle was disappearing at an alarming rate.

Eventually, I made one final stop at a student's desk and sat on the corner of it as we wrapped things up before the bell.

That's when I noticed something strange.

There was a water bottle sitting on my desk.

Right where I'd left it.

I looked at the bottle.

Then I looked at the bottle in my hand.

Then back at the bottle on my desk.

There are moments in life when your brain needs a few extra seconds to process the information it has just received.

This was one of those moments.

If MY water bottle was sitting on MY desk...

Whose water bottle had I been drinking from?

I slowly raised the mystery bottle and took a closer look.

That was a mistake.

Floating around inside was a disgustingly large amount of what can only be described as...

backwash.

And it wasn't mine.

I froze.

I stared at the bottle in my hand.

I stared at my actual bottle sitting safely on my desk.

And I immediately began replaying my journey around the classroom.

Where had I picked it up?

Whose desk had I been standing beside?

Most importantly...

WHOSE WATER BOTTLE WAS THIS?

I had absolutely no idea.

And I wasn't about to ask.

Without drawing attention to what had just happened, I casually made my way back to my desk and placed the mystery bottle beside mine.

The bell rang.

I dismissed the class for break.

And I waited.

One by one, the students left the room.

Nobody grabbed the bottle.

Nobody came back looking for it.

The mystery remained unsolved.

As soon as the final student disappeared through the door, I grabbed the mystery bottle - dumped the remaining water, and whatever else was floating around in there - down the sink and tossed the bottle into the recycling bin.

Then I grabbed MY water bottle.

I took a huge gulp.

I gargled.

I rinsed.

I may have reconsidered every decision that had led me to becoming a teacher.

From that day forward, I brought my water to school in a thermos.

A very identifiable thermos.

There would be no more mystery water bottles for me.

To this day, I still don't know whose bottle I drank from.

And I don't want to know.

But every once in a while, I think about that day.

The bottle.

The backwash.

The mystery student somewhere out there who probably went home wondering...

"Hey, what happened to my water bottle?"

And yes, even after all these years, I still get the heebie-jeebies thinking about it.

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Now, Over to You...

What's something that happened in your classroom that still makes you cringe when you think about it?

Share your thoughts with me! I read every one, and who knows... your story might inspire a future edition of Mark's Notebook.

Until next Friday... keep laughing, keep reading, and keep an eye on your water bottle... because you never know...

— Mark Gunning

Children's Author | Retired Teacher | Collector of Kid Logic