This time of year I don't get out much before dark, so I try to practice by porchlight in the backyard. The other night a can left over from the kids shooting the pellet gun caught my eye near the bag target. I couldn't see where the arrows went in the darkness, but I could hear, "Tink, Tink, Tink, Thud, Tink." Didn't seem like the can moved much, so I figured I was just nicking it. Walked the 17yds to the can to find this:
Turns out that shooting at cans is a bad idea if you want to keep fletching on your arrows. Luckily the only arrow that had fresh fletching was the one that missed a little high.
As an aside, does anyone else practice in the dark? I can make out the target, but I can't see my arrows. I find my groups are tighter, although usually not centered on the bullseye.