While I agree with you to a point, taunting a bull and killing one are two different
things. The most vicious dogs I've seen were little dogs, the bigger breeds tend
to be a bit more serious, and with the medias attention on the situation it has
bread into many humans a fear of certain things. By vilifying these breads we
then say as a society that it's ok to kill them. We do this with sharks, wolves,
tigers and so on. With this kind of mentality we become the monsters we pretend
to be abhorring.
A few years ago before the Ontario Pit Bull ban one of the papers dug through Toronto's files for some info on dog attacks. Specifically involving children. 90% of attacks where done by small dogs.
If I recall correctly one incident involved a 2 year old who crawled into the neighbours yard and I believe was killed by a Chihauhau.
Some more interesting facts here,
http://caveat.blogware.com/blog/_archives/2005/12/9/1443099.html
Scroll down and note the various dogs types that attacked. Please also not the one false "Pit Bull" report that was in fact a German Shepherd.
It should be noted that Fred Astaire, President Roosevelt and Helen Keller owned "Pit Bulls" though it should be noted the type they owned was known as the Yankee Terrier.