Not sure if this is a feature or bug but I'll describe what happened.
A mini horde of zeds came to check out the commotion at my home base; I was able to lead most of them away safely, however a few had remained, stuck on the outside of my base. When I came back to finish those stragglers off I noticed one of them was one of the big, fat spiting kind. I approached from the backside of my base and realized I was getting pelted by this spit. Not only was I getting destroyed by his spitting but a great deal of the stuff inside of my base was being decimated as well - including my cabinets and refrigerator where I stored most of my food stuff

Problem with this is, there was clearly several walls between him and me/my stuff including a huge 'shipping container'.
TLDR Big fat spittter guy can spit through walls, several at a time and still kill players/stuff. Not sure if it's a bug or feature.