I have a story from a customer perspective. YEARS ago I was at a Tupperware party. They had these great jewel tone colored cups.The consultant is describing how STRONG these cups are. She put it on the ground and stood on it.
"They tested these cups by running a Mack truck over them. They just won't break. Does anyone want to come up and try?"
I raise my hand. She calls me up. I put ONE foot on the cup, and, you guessed it, CRRRAAAAAACCCKK!
I was mortified. Apparently I weigh more than a Mack truck. She was astounded. Needless to say, I ordered a set of those cups. I'm drinking out of the red one right now.