How do you get a penalty?

Because robbery, you take something while hurting someone in the process.

a disadvantage or handicap imposed on a player or team, typically for infringement of rules.Football: A penalty kick (or penalty) is a type of free kick in association football, taken from twelve...

They are violations for a football player when he does something wrong.

Penalties ensure that players (and sometimes coaches) have a clean and safe football game.

When someone refers to a 'stiff penalty' it is just a way of saying that a person will get the maximum punishment that the law allows for that particular crime. Such as armed robbery may carry a...