A Little Help Please

Well, I came home from work to this.  All I could hear while coming up the stairs was giggling and farting.  (monkeys sometimes do that, at least in this house they do).  When I opened the door and saw this, I was speechless.  They will each have a chance to tell their side of the story, but I don't know if I am buying it.  Guillermo embellishes stories to the point of being unbelievable.  I usually trust Bernardo, but today, I just don't know...  You be the judge.