Hired Trevor to clear my clogged toilet. Fee was "$425 plus HST to clear a plugged sewer." He removed the toilet and ran the snake a very short distance. When the toilet flushed, he assured me the sewer was "clear." When the toilet clogged later in the day, a camera revealed a paper clog further in the line. When I asked him to reduce his $644 bill given his failure to "unplug the sewer," he yelled aggressively and threatened me with "court papers." He then texted me the same threats. Horrified.