Right now I'm working on housebreaking a new puppy, so frequent trips are taken outside to let her go bathroom, sometimes at all hours of night on occasion when she wakes up and cries (tell tale sign she is going to piss/crap her dog crate she sleeps in unless she is taken out).
So one such night I'm taking her out at like 2am, deciding to go out through my garage to get to my front yard. I open my garage door via my automatic garage opener which slowly lifts my door to a very loud rustling and some very large and fast moving things are moving outside my door as it slowly lifts which freaked me the fuck out (since at first I can't see exactly what it was.
It turns out it was 4 very large deer just that must have been hanging out right outside my door, and they bolted across the street when I opened the door. I proceed to very slowly and quietly let m dog piss in the yard, while the 4 deer just stand there motionless on the other side of the street staring at us (surprisingly enough my doggie did not freak out at all at our "visitors"). So, yeah, in the end just harmless deer, but in the dark while tired at 2am and that close up (very unexpectedly, its not like I live in the woods or anything, just regular suburb), it did give me a jump.