about some forms of picture taking. It would seem to me, based on the info there, that you could greatly slow down the shutter speed (if your camera allows). Maybe even to as slow as 5-10 seconds. You must use a VERY stable surface. Then the trigger will not be as critical.
FYI, in the article he took a pic of some ancient standing rocks. He set the camera on self start with a 30 second delay. He hid behind the first rock and held a flashlight and back lit the rock with shadows falling toward the camera. He would run behind the next rock and hide and do the same back lit thing with the flashlight. He said that the slow shutter speed allowed him to run quickly between the rocks without being picked up as part of the picture...and he was right, there was no sign of him anywhere. I don't have an external trigger, but thought I could use the technique for situations such as yours. Edited to add a link with a picture
http://photography.nationalgeographic.com/photography/photo-tips/vigil-stones-richardson/Of course, in windy weather, where building have some sway or 'give' it may not help at all.
Seriously, this guy has some amazing techniques he is willing to share...
http://photography.nationalgeographic.com/photography/jim-richardson-photography/.