FOUL!!!

In the game of football, if your hand touches ball, it's a foul.
In the game of handball, if your leg touches ball, it's a foul.
In a standard table tennis settings, if your body touches the table, its a foul.
In Christianity, you can worship God as well as mommon.
You can't get married and still having affairs with opposite sex outside, it a foul but it's allowed in other religion.