Overheard in the hall of my lab:
Prof1: Long time no see. What brings you up to the lab?
Prof2: I've finally decided to throw away some of my stuff that I've been keeping in this room. You know how you're not supposed to waste leftovers?
Prof1: Yeah, so you put it in the fridge and forget about it for a week or two until it molds. And then you have to throw it away?
Prof2(smiling): Exactly. That's like this - do you think 20 years is long enough? I never knew what to do with that stuff even back then.
Prof1(chuckling): I'm sure it's moldy by now.