Construction Crane Puns

A few years ago, my dad decided to take my younger sister, my girlfriend and me to the Philadelphia Zoo. We were just walking in among a crowd of people and my dad noticed there were some construction workers on a roof of one of the buildings in the zoo. Almost immediately, he pointed up to them and said, very loudly, "Hey look! There's a flock of Homo sapiens!" All of the kids and some of the adults in the surrounding area quickly looked up. I even heard one kid ask his mom what a Homo sapien was. My pops was pretty proud of himself for that one.

While putting up framework in a construction site, a worker waves at the crane operator about to place a main support beam and yells "stop, that beam isn't strong enough! There's no way this will hold the upper levels!". The foreman pushes the worker aside and yells to the crane driver "It's fine. Truss me, I'm an engineer!"