DH and I never hear from his sister, she doesn't even send out 3 young DC birthday cards although we always them them to her DC. We haven't spoken to her for a year (after we looked after our niece, her DD, for a week last Summer) and out of the blue she called us to say they were going on an exotic holiday for 2 weeks but upon their return could they drop off their DS (13) with us (at 2am) so that we could drive him to a beach pop festival two hours away, leaving here at 5am so her DS could get there early to meet his mates and find a good spot...... DH said no, we haven;t heard from her since, who was BU?