A blonde, brunette, and redhead went to a church to donate money. The brunette draws a circle around her and throws up all her money. 

She says that whatever lands inside the circle is for God, and whatever lands outside of the circle she keeps. 

The redhead then draws a line, stands on it, and throws up all of her money. She said that whatever lands on the right side of the line is for God, and whatever lands on the left side she keeps. 

The blonde throws up her money, and yells,"God, whatever you catch is yours, and whatever you don't I get to keep."