Magic Forums

Someone keeps throwing coffee (I think) at various times during the day. I leave for work at 5 to 6 in the morning, and get back at 1-4 in the afternoon. And when I get home my door is drenched in coffee, I've been to scared to touch so I just clean it off as fast as I can, but it's happening more frequently. They are also breaking the stems of my plants on my porch, but only to the ones on that run along the side of house, there is also no footprints or cups anywhere, just the mess. I need help, I haven't done any spells other than protective ones.