Here are some rules about laggin so that people understand it more prior to the meeting.

Lagging for the Break

To lag for the break, each player takes a ball-in-hand and shoots it down the length of the table. They should be balls of equal size and weight. The official rules say that you should use two cue balls, but if two cue balls are not available, it's okay to use two solid-colored object balls.
The players stand at the head rail, one on the left side of the table and the other on the right. With the balls placed on the head string, the players shoot their balls to the end of the table simultaneously. The balls must bounce off the foot rail (the far rail) and come back to the head rail. The player with the ball that stops closest to him or her at the head rail will break first. The ball can either bounce off the head rail or just come to a halt after the bounce off the foot rail — it doesn't matter. All that matters is how close the ball stops in relation to the head rail. The player who shot the ball that stops closest, wins the lag. The winner may then choose to break first or to have his or her opponent break first.


Losing the Lag
There are few ways to automatically lose the lag — or forfeit the choice of who breaks first to your opponent:
If the ball does not travel straight down the table and winds up returning to your opponent's side of the table, interfering with the path of her or his returning ball, or if the ball hits the side rail on its way down the table.
Another way to lose the lag is for the ball to fall into a pocket, so make sure you are hitting it in a straight line up and down the table.

You also automatically lose the lag if the ball doesn't strike the foot rail on the other side of the table or if the ball flies off the table. If the lag is tied, both players try again.

Three questions:
1. How do you decide who shoots from the left and who shoots from the right? Coin toss?
2. Do players have to shoot simultaneously? If not, how do you decide who shoots first? Coin toss? (If they do have to shoot simultaneously, how do you enforce that?!)

3. Can I hit the bottom rail and then hit a side cushion on the way back up to the top rail?

The referee will surely side with the player from his/her own team, no?