[Renevatia]

When ever i see stairs I imagine them the be made of rocks with sharp edges and I start to picture out the most painful results of tripping on one of the top steps. It generally leads up to something alongs the line of tripping, headfirst to 3rd step down, bend arm in weird directions slide down with ripped lips/nose as main pressure point, then do a bent back at the end of the steps with broken spin. Don't ask why I really dont know ;/

When I drive, I like to estimate other car's speed with relative change of distance one at a time, repeat.

I like(try) to triangulate the height/speed ratio of a plane by estimating sound emitting distance behind the plane and angle of view.