Shocked the hell out of my wife last week at the University Sport's centre.
I saw her walking back to the track exit after her "30 & over" fitness class, (I walk the track and push a few weights)
so I ran the last 20 feet to the exit door so she would see me running. She stopped dead in her tacks with her mouth open.
LOL - hurt my knees & my back doing that. Oh well, IT was fun while THAT lasted.(the fun part)