(Oldest son pictured) It was a pretty thorough job of TP'ing -- probably
It's lucky we found it tonight, since our sprinklers turn on before any of us go to work in the morning. At first, we wondered which of our three teenagers might be the target of the TPing; then we found a clue in the yard:
We assume that "HALO" indicates not that it was disgruntled California Angels fans, but rather the oldest son's video game-playing buddies. Just another example of how video games are warping the minds of America's youth! After all, did any of us do this to our friends in the days before video games?
Update 0718 21 June: Upon overnight reflection, I reduced the estimated number of rolls used from 10 to 6. TP is like lube oil -- when it's all over the place, the amount you think you're seeing is always overestimated.