Paddy picks something up from off the floor and says to Mick, “Hey Michael, I found this pen, is it yours?”
Mick replies, I don’t know Paddy, give it here so I can take a look”.
He then tries it then he says, “Yes it is, thanks Paddy”.
Paddy asks him, “How do you know it’s yours Michael?”
Mick replies, “Easy Paddy, that’s my handwriting”.