Sure this has been thought of and tried, but here it goes.
Does it happen at every gas station?
I have that problem at some stations, I either slight twist nozzle or pull out just a hair, all depends on the angle of the nozzle.
If I pull out a hair so the part I front of the handle does not ride on the body and just do 1st click, don't have a problem, but if I push all the way, the angle of the nozzle will shut it off sometimes.