bent cam shaft

I don't trust anyone with my car... Me an my cuz swapped a stang engine for a guy awhile back, the guy had taken it to a garage for a clutch, thay charged the him $1,000.00, didn't turn his flywheel, didn't change his throw out bearing, left half the bolts loose and thay blew his engine when thay test drove it after the "clutch job"... I'm serious, some people are that slack..