Deciding whether or not to trust a person is like deciding whether or not to climb a tree, because you might get a wonderful view from the highest branch, or you might simply get covered in sap, and for this reason many people choose to spend their time alone and indoors, where it is harder to get a splinter.
"The Penultimate Peril: A Series of Unfortunate Events #12". Book by Daniel Handler (Lemony Snicket), October 18, 2005.