My kid and I were in public restroom

My kid and I were in a very crowded public restroom at a sporting arena,

after looking to the man using the urinal to his right, my 6 year old son turns to address me on his left and exclaims,

“Daddy, that man’s wiener is a lot bigger than yours!”

The whole bathroom heard and looked immediately at me.

So I put my hand around my kid and told him.

“Well son, that’s because daddy isn’t aroused by men.”