surly:
bad-tempered, ill-natured, grumpy, glum, crotchety, prickly, cantankerous, irascible, testy, ill-tempered, short-tempered, ungracious, splenetic, choleric, dyspeptic, bilious, crusty, abrupt, brusque, curt, gruff, blunt, churlish, ill humored, crabbed, uncivil, morose, dour, sullen, sulky, moody, moping, sour, unfriendly, unpleasant, scowling, unsmiling, humorless, disrespectful, grouchy
Yup, that quite sums him up...
then I realized you probably meant to say: "Watch out for the big back fire as it is bigly coming."