"Too much traffic"
"Another"? How often does this happen? (Also, did you coin the phrase "recreational zoology"? It's excellent.)
It is a whole THING!http://jennydavidson.blogspot.com/2006/03/abcs-anomalous-big-cats.html(and I will take credit for the "recreational zoology" coinage - I needed a label for when I go to zoos & things...)
What I like about it is partly its extreme vagueness, it could mean anything from taking a trip down Loch Ness to vivisecting one's parrot.