Chris Kaiser knows by now.
He shouldn't taunt friend Chris Kramer when they're playing pick-up basketball on opposite teams.
But Kaiser, who started alongside Kramer at Huntington North, can't help it.
And then he regrets it.
Apparently, Kramer's lock-down defense extends off the college court.
"I'm pretty competitive," said Kaiser, who first met Kramer in sixth grade. "I'm going to go at him. I'm like 5-10, 140 pounds. Chris is like 6-3, 220. We'll play pick-up in the summer. I'll score on him and hit some crazy shot and I'm like, 'Big Ten Defensive Player of the Year?'
"And I won't score the rest of the day."
Kramer's other best friend, Ben Ryan, also enjoys a game of pick up. Ryan said when Kramer is home, they play about four or five times a week.
But he's not about to let Kramer display his defensive prowess.
"I usually make it so we're on the same team," said Ryan, who played college ball at Grace. "If he can lock down Stephen Curry and Evan Turner, people who are the best players in the country, it's one of those deals where I can't even get a shot off. That stinks. But playing on his team is a lot of fun."
And Kramer can dominate more than just on defense, Kaiser and Ryan said.
Kaiser started alongside Kramer at Huntington North when Kramer averaged double-figure scoring.
"They couldn't guard him," said Kaiser, who was the shooting guard. "He was a beast. Purdue always has great scorers. He just kind of took a back seat and did the little things. But now, they definitely need him to score if they're going to go far in the tournament."