Four is extremely rare. For example, last year's bowl games featured 68 teams. Only about 5 or 6 kickers even attempted four field goals. Out of those, Henery was the only one to make all of them. Only a small handful of guys even made three.
The crazy part is, we punted from the 34 or so last night, instead of giving Henery a chance at a 51-yarder that would have made it five on the night (would've tied the all-time bowl record set by Kyle Bryant of TAMU in the 95 Alamo Bowl). Maybe it was the rain that made Bo's decision.
It was him taking it easy on his friend.