This was a man I saw.
He was pushing a pram, and so I guessed that the woman that was with him was his other half.
I just hope he was wearing it for one of the following reasons;
A: He lost a bet
B: It was all the seaside shop had in stock in his size and he couldn't wear his top for some reason (like Baby Sick)
C: He is hinting to his partner
And not one of the many other reasons I thought of.