"That is probably enough to put the orbit of that comet, debris trail and all, millions of miles away from our current position."
Well, that's a relief. Wouldn't want to experience a whole bunch of these, of varying sizes, over a period of days or weeks. The uncertainty would likely cause some pretty peculiar mass behavior amongst the populace, lol.
http://www.serve.com/wh6ef/comets/meteors/showers/daytime_arietids.html
G A R Y W. K R O N K ' S C O M E T S & M E T E O R S H O W E R S
The Arietids
Observing
This is the strongest daylight meteor shower of the year. The duration extends from May 22 to July 2, with maximum activity occurring on June 8 (Solar Longitude=76.8 deg) from RA=44.5 deg, DECL=+23.6 deg. The hourly rate is near 60 at maximum. The radiant's mean daily motion is about +0.5 deg in RA and +0.3 deg in DECL, while the radiant diameter remains a fairly consistent 3 deg in diameter.
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This one broke up long ago and is spread out. The recent comet just started to break up and is still concentrated into a small group.