Just out of high school I owned a baseball card shop, well I use to travel to the largest of card shows regularly to sell and buy more stock. At the National convention in Houston I was checking out a few tables and not paying attention, I walked straight into Mr. Butkus. I'm average in size, but he was a brick, didn't budge one inch. He looked down at me with the most unapproving look. I looked up and said "oh, and sorry." He glared as as he walked away. I would have hated to be a QB in his heyday.