the boat to mark

Sardar Sms

Two sardars go fishing. They catch a lot of fish and return to shore.

The first sardar says:
"I hope u remember the spot where u caught all those fish."

The other answers:
"Yes,I made 'X'on the side of the boat to mark the spot."

"U idiot!"replies the first."how do u know u will get the same boat tommorrow."