1. This sort of thing needs to be discussed before the game starts or, as you found out, an argument develops.
Personally, with my friends we dont make an issue about it but we used to still make a 1 or 2 buy in maximum just incase.
Now we double the blinds every ten minutes with unlimited rebuys, but after a few doubling up of the blinds its obviously less profitable to buy in and better to stay for the next game.
2. Out of the two people who went all in and lost, the guy who had more chips before he went all in gets third place.
So
Player one goes all in with 3000 chips
Player two calls all in with 2000 chips
Player three calls all in with 2200 chips
So if player 1 wins the hand, player 3 would get the nod ahead and get third place
If the unlikely event of player 2 and player 3 having 2000 chips and still losing - they would be joint third so would split the cash for third place
