Two men are out on the lake in kayaks fishing. One of them says “Man it’s so cold out here, all my body heat is going straight into the water.” The other says “Well get that newspaper you brought with and light a fire, warm yourself up.” So he does, he rolls up the paper, lights it with his lighter, it catches the boat on fire and it sinks.

Just goes to show you can’t have your kayak and heat it too.