That is absolutely horrible and there was no reason for the receptionist to be laughing. That's a serious sign that something is wrong in that home and it should probably have been reported to the authorities. Who knows what has already happened to that girl at her age to make this happen and who knows what it would trigger in years to come.
Anytime someone hears or sees something like this, it should be reported. I can't believe how sick some people are or how others turn their backs. I think the wife in the above story did right by turning her husband in, but I do wonder how long this was happening before something was done.
Stupid People Have Stupid Children, Hence All The Ignorance In The World!