The other day me and DP were in a shoe shop and my son (DP is not his bio father) started chatting to the cashier woman (as 5 year olds do!) but then DP went across and said something about "stop trying to chat her up..!" and then waited around for her to laugh etc (which she did) and he then says to my son "I might have to arrest you..." so my son said "you're not a police man!" so he replied.. "I will be...soon..." and this was all for the benefit of the woman behind the till!
Do any of your DP's act like this?