Reasons Why #13: Standing Room Only
The vast majority of my evenings out involve concerts.
The vast majority of these concerts take place in rather skeevy sorts of bars.
The vast majority of skeevy sorts of bars have rather limited seating.
Thus, the vast majority of my evenings out are spent standing up for several straight hours in order to see concerts in skeevy sorts of bars.
While my ass sometimes gets numb when asked to support 300lbs for hours at a time, that's nothing on what my knees do. Numb would be a blessing. Numb would not involve sharp, shooting pain.