... had they had a load of alcohol? Did she get annoyed cos kid in a strop? accident etc

But to be honest I can't beLIEVE, if that was the case, the lengths she has therefore gone to, to cover it up (unless she has a mental disorder which means she has completely blocked out the incident, which is rather unlikely because then it would have taken her hub and ALL their friends to be involved in the subterfuge)

Will we ever know .......