Lady: So the cars don't bother them?
Me: No, she's used to them.
Lady: Wow, I can't believe the cars don't bother her.  So do you ride her too?
Me: No, she's just a carriage horse.
2 minutes later
Lady: And the traffic really doesn't bother her?
Me: No, she's been doing this for almost 10 years so she's seen pretty much everything downtown.
Lady: Do they ever get ridden?
Me: Not really.  This is her job.
Lady: Wow, I can't believe she's not freaked out by the cars!  Does she ever get scared of them?