Pet peeve at work: throw your food away instead of putting it in the sink! there is no disposal and I have to dig out bits and pieces of lunch...gross. I posted this poem above the sink for all to see.

I am a drain, as you can see
But please don’t feed me solids.
No noodles, rice, corn or peas
No chicken, fish or collards.
When you finish with your meal
Take some time for this proposal
Trash the food to seal the deal
Of course, at your disposal.