My lovely new markers that I have fell in love with (Papermate Flair for the pen nerds out there) are not waterproof. I tested these out and put some water on them and they didn't bleed.
But after labeling 40 coffee filters which accidentally got wet on the trip to the Pre-K room I found out they weren't.
I had backup coffee filters so not all was lost.
And then I went to grab a granola bar from my bag and came out with a handful of glue. I put this glue bottle in my bag and never took it out. Glue everywhere. So I spent my lunch cleaning this mess up.