Scout's Survival Kit

A Scout Master was teaching his boy scouts about survival in the desert.
"What are the three most important things you should bring with you in case you get lost in the desert?" he asked.
Then one little boy in the back eagerly raised his hand.
"Yes Timmy, what are the three most important things you would bring with you?" asked the Scout Master.
Timmy replied: "A compass, a canteen of water, and a deck of cards."

"Well, Sir, as soon as you start playing Solitaire, someone is bound to come up behind you and say, "Put that red nine on top of that black ten!"