Short story. Post hoc ergo propter hoc is a logical fallacy (after therefore because of). Tool bag != Canadian meteorite.

Read Phil Plait, he's awesome.

http://blogs.discovermagazine.com/badastronomy/2008/11/23/canadian-fireball-was-not-the-iss-toolbag/

And that's how I found out I wasn't fat... but pregnant...