Tape measures?
Don't even start me on tape measures!

I own about twenty, most of them 6mtr (21ft).
They live in their own pigeonhole in a steel cabinet.
Those things have a mind of their own.
I can be sitting on a crate preparing to weld something. put my tape measure down, run a weld. go to pick the tape up again...and the bloody thing has vanished.
I haven't moved from where I had it last!
How do they do that?
During the winter months when I've done all the 'inside' work I can, and it's too wet to work outside, I go through my entire workshop and return them all to where they belong.