The lead paragraph from a New Zealand report on protests at an August medical conference pretty much says it all,

Two anti-vivisectionists who tried to throw themselves underneath buses transproting animal research delegates were arrested during a week of boisterous protests outside a Christchurch conference.

A total of about 50 activists showed up to protest the conference.

Source:

Protesters arrested at animal research conference. Stuff.Co.Nz, August 23, 2003.