intrude (upon)

inconvenience, trouble

aggravate, annoy, bedevil, chafe, devil, dog, dun, exasperate, fret, gall, get, gnaw, grate, hassle, irk, irritate, nettle, peeve, persecute, pique, put out, rankle, rasp, rile, roil, torment, vex, worry

beleaguer, beset, besiege

distress, plague

afflict, harass, provoke

anger, antagonize, enrage, incense, inflame (also enflame), infuriate, madden, outrage

agitate, perturb

butt in, cut in (on), obtrude

encroach, infringe, invade, trespass