Is it normal to blame people for something i did but forgot?

This has come up a couple times this week and it always seems to cause a problem. I will misplace something and then think it was stolen. For example somebody has been stealing from my porch and I knew it was somebody I knew so I accused my suspects so they would admit it. I was certain it was them. It turns out I find what was stolen somewhere else and while I have no recollection of putting it there, I know I must have misplaced it.