Corrected entry: When Finn is on the ground after being chased by Rey and then shocked by BB-8, Finn's pants do not have burns from the initial shock. The shot changes to Rey and back to Finn seconds later where he is shocked again and has 2 burn marks on his pants. When the shot comes back to him on the ground for a third time, there are no burn spots.
snowtrooper49
17th Feb 2016
Correction: There are never any burn marks on his pants. There is a point where there is a spot of sand on his pants, and in one shot it looks like the spot moves. But you never see any burn marks on the pants.
envisaged0ne