You can taxi a glider it just takes a little finess! it was frowned apon a bit if students did it, but a few of my instructors did this to speed up recovery and getting back to the winch line. its all about energy management, not landing long and how far down the feild the 'Van' is.
Wouldn't chance my luck with the hangar tho....
I have been on finals and watched a 'visitor' to the club wlak across the active grass runway beck to the club house proper (loo break) i closed the air brakes and sailed happily over his head. no damage done as i had the room, it meant a long rertreval of course. I doubt the bloke saw me until i was on top of him. by the time i was back at the van the launch co-ordinator was alreay tearing strips of the chap.. i left him to it.
Nobody should be anywhere near an active runway (unless you have permission and know what you are doing,.. i.e where to look)