Uuuuuuuugh. I thought of this as soon as I saw the title of this post. I'm so sorry...
What really gets me is when it's not immediately afterward that this happens, but like 30 mins or an hour later, and you've washed your hands well - or so you thought - after cleaning up. But there was just enough oil left somewhere that you still get burned when you go for your eyes.
I was mixing some "chili con carne", went to the bathroom, didn't wash my hands before... big mistake.