More than a little pissed. My son was parked in the snow for a while, and when he went to back up he didn't realize the handbrake was on, tore the bevel gears to shreds and bent the intermediate shaft, slight crack in the case which was repaired with JB weld.
It was the after affects that really got me. Had to tear it down a month or so later, lost the crank. I did a thorough engine cleaning after the bevels went, but the rod bearing must have seen too much metal filings, and it knocked me down again - bad enough after the first time.
Best to replace the bevels if you ever get the chance. It can do way more damage if you wait for it to die.