I fly out of Moorabbin and have seen two aircraft land with bullet holes that were not there when they departed! Both times they have been .22 however. It does prove to me however that there are "people" like that out there though.
I hope this dosnt happen - please dont get me wrong! I've ordered my own dont forget. Just being devils advocate is all.
It is interesting to note that both pilots were unaware that they had been shot at. I figured it would make some noise on impact but apparently not the case.