Is there a term for when you complain about something, and then it just starts working right?

Question

I often find that when working with different forms of technology it breaks then when you have someone watch it or complain to someone it works. Is there a term for this?

Answer 1

There's heisenbug, a pun on physicist Werner Heisenberg and the observer effect, a phenomenon whereby observing a system causes its behaviour to change.

Answer 2

I don't know of an existing name, but I'll make one up:

Cheshire cat bug

This comes from Lewis Caroll's character, the Cheshire cat, who disappeared and reappeared from time to time.