The Pope, a Greenpeace activist, and an Engineer are... ... all going to the bathroom, but as there is only one stool, the wait in line. First goes the Pope, reliefs himself, get out, wash his hands with a lot of water, and a handful of soap. He looks at the other two and says: I have to use every part of what the Almighty God has gaven us. Than the activist goes to pee, get out of the stool, and with just a couple of drops of water he wash his hands. Looks ath the other two friends and says: We should preserve the most of our Mother Earth. Finally the engineer goes in the stool, free himself, and gets out of the toilet without washing his hands. With no hesitation he grins to the two friends waiting for him and says: Well, I am an engineer, they thought me to not pee on my hands.