For the last year, my only go-arounds have been for other a/c still on the runway -- and it's not that long -- 1900'.
Gliders also teach you to pick landing spot, roll out trajectory and pull off point as there are often other gliders that have just come down and you have to design your own runway to miss everybody already down and then get out of the way of the chap behind you.
Taxi power to clear the runway is you pulling on the shoulder straps
