I have only seen the young girl wash her car once but other than that no . I have had one of  my sister stay on occassions for a couple of nights here and there but that wouldnt make a huge difference to the bill like it has .We do have a new young couple who have only been here abou t5 months though and the last one was a little higher but this one is a lot more . I have been here 18 months and there hasnt been anything like this happen before .