X and Y were in a public bath.

X: what shaving cream do u use?
Y: Mark’s
X: what deodorant do u use?
Y: Mark’s
X: which toothpaste do u use?
Y: Mark’s.
X: what shirt do u use?
Y: Mark’s.
X: Tell, me, what is this Mark’s? Is it a boutique?
Y: No, he’s my roomate! 🙂