Help! The Handyman ruined my shower!

It happens more often than I would like to admit. I walk into a job gone bad! This poor Temecula homeowner hired a guy that said he could remodel her shower but actually couldn't! Thankfully we we're able to steep in and tear out the terrible shower work and start over the proper way! This guy had no idea what he was doing and would have created a real disaster once the shower was in use. When I walked in the tub drain was installed incorrectly, the tub drain overflow wasn't even installed!, the tile on the walls had no vapor barrier! Yikes! We tore everything out and literally started over! Reset the tub, drain and overflow, tore out drywall and installed vapor barrier, 1/2" tile baker, and then tiled the walls level and true!