A frog will not let himself boil to death.

Have you ever heard the saying that a frog will boil to death if the heat in the pot is turned up gradually?

Urban myth has it that if you put a frog in a pot of boiling water it will instantly leap out. But if you put it in a pot filled with pleasantly tepid water and gradually heat it, the frog will remain in the water until it boils to death.

This is not true: https://en.wikipedia.org/wiki/Boiling_frog

Image Credit

The frog and kettle: By James LeeFormerIP at en.wikipedia - https://www.flickr.com/photos/jronaldlee/4579611880/Transferred from en.wikipedia by ronhjones, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=18954704