Can't be Hamas... Jimmie's their best friend.
My bet is it was someone who moved into one of the houses built by Jimmie & Habitat for Humanity - the houses that are now falling down around them.
Professionals will build according to specification. If a shingle calls for two roofing nails, that's all they will get. The HFH amateurs, unable to place the shingles exactly right will pound in three or even four nails-- not uniform and not efficient with material, but better able to withstand the next storm for which the specification was insufficient.