"Hey boss, um, I have super, um, awesome news..! Uh, the pipes burst in the men's John and there's sh!tty water all over the floor... Have a super duper day!"
Not sure I would work for a company like that. Sounds like complaints would fall on "dead ears"! Not very customer focused.
I would just leave a message for people to leave their name and number and I'll return the call -- just like always.