Another Capitol Hill fire

Eyewitness reports a second Capitol Hill fire tonight -- the first was an early morning blaze at a plumbing business on 12th Ave. E. Oddly enough, tonight's second fire was at 733 Summit Ave E., listed on the always trustworthy Internet as a janitorial service of some sort. Coincidence? I have no idea how many fires there are every day on Capitol Hill. How many fires are there involving janitors and plumbers?