Scary, especially when it’s an out of left field, seems your mind was at rest no fear no dread just boom it flew at you then it didn’t. I hope for your sake it was just head trick, some subconscious reaction to an image that for some reason holds some power over your mind. Anything more, well the thought inanimate objects coming to life, especially gnomes, they freak me out, anything More really unsettling.
Funny thing is I was never afraid of gnomes before or since this happened