A llama named Caesar hopped aboard a light rail train in Portland last weekend for a ride to Wizard Con as amused commuters made room for the four-legged animal.

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Several riders took pictures of Caesar, who was heading to the Oregon Convention Center with his handler, Larry McCool. McCool told Oregon Live that the llama tends to bring a smile to even the sternest of faces.

But transit officials weren’t smiling.

"While we appreciate that Caeser is promoted as 'The No Drama Llama,' and that he apparently was well-behaved during his ride, TriMet policy only allows service animals on TriMet vehicles," spokesman Tim Becker said in an email to the news site.

The llama does provide a service, according to its website. Caesar is for hire for charity, business or personal events and parties where hosts are "looking for a fun and unique guest star." The website also says Caesar performs at charitable events for free.