Collective noun for Dublin Taxi Drivers

I'm still off work at the moment , I'm having a bit of a holiday and so I'm struggling to come up with content for the blog, so I remembered this little Gem from Begorrah.com, when they asked their readers to come up with a collective noun for Dublin Taxi drivers, there are some howlers in there;

The Return Of The Picture Of The Day Competition: Off The Meter? Here's Where YOU Fill In The Blank...

A sleuth of bears...
A charm of hummingbirds...
A flange (no joke) of baboons...

A ________ of Dublin taxi drivers?

Click here to go to Begorrah for the replies