If you are deep stacked, 4 bet a decent amount. If they shove, go for it. Remember that any card can hit on the flop, so going all in can be a finality.
Short stacks are an easy all in. The person wants to play and it is a positive EV play.
Now, if the person is short stacked and you are deep, the bet could be enough to make them have to go all in. This can further isolate them from people who want to see a flop, but do not have
hands that can withstand aggressive play.
The goal can be to win the chips, but it has to be done in a way to not end a tournament on your part. Wait until the flop to decide on an all in if you are able. The best way to handle them is to isolate them and go from there. It is also better to recover from chip loss than it is to have to walk away completely.