DH gets paid cash and always has a lot of coins floating about (always pays with a note and just shoves change in his pocket). We've always had a small change jar, but I recently got one of those big money saving tins that you can't get into without a can opener. So I've started putting DH's £1's and £2's in there, along with some notes sometimes if I think he won't miss them with the intention of when it's full, it might pay for something nice for us; something to put towards a holiday maybe.
I haven't told DH I'm doing it, he knows I have the tin but thinks I just put the odd £1 in it, he hasn't noticed anything missing (he often gives me change for parking meter at work for example) and the reason I haven't told him is just because I want it to be a nice surprise for him. I'm not planning on running off with it.
Told my coworker yesterday though and she thinks it's stealing! That it's "his money" and I shouldn't take it.
So what do you think? AIBU? Should I tell him I'm doing it?