not put it past someone
not put it past (someone)
To not dismiss or rule out the possibility that someone has engaged in a particular kind of bad behavior, based on that person's previous pattern of behavior. Do I think Joe stole the money? Honestly, I wouldn't put it past him. He has no conscience. It seems a bit far-fetched that the government is spying on us with our own appliances, but I wouldn't put it past them.