I think a sniper almost shot me?

So i was in the living room w/ my sister talking about stuff, and all of a sudden, the sliding glass-door that led to the back of the house was saturated by red. In my perspective, it was a huge red circle beam on the glass - probably due to refraction and whatnot - but in my sister's perspective, the red beam was a perfect small circle, the type you see in movies.

I'm trying to explain this as best as possible. I was facing the glass sliding door and it would have been impossible to see the red beam but the beam had to get through the glass to get to me, so i saw it reflected on the glass. My sister was facing me and was turned away from the glass door so she saw the circle around my head region.

My question is, is this a sick prank by some guy, or was this serious because i honestly doubt those pen laser things can reach that far. Should i call the police? Thank you.