I had a sickness bug last week, couldn't move out of bed/off the sofa for 2 days.
PIL very kindly came up and looked after the DC's one day for me. They took them out (and took 11 month old DS for a macdonalds) and brought them back midafternoon.
They were then playing upstairs in Dd's room, and i could hear MIL going through her chest of drawers and talking to FIL.
AIBU to think this is a bit cheeky? They love going factory shop shopping and are forever buying the DC's things they don't need or that really aren't my taste. We have told them that we have all we need and it doesn't stop them 
She said nothing to me so i have no idea what she was up to. I am well aware dd's clothes need a sort out as she's had a growth spurt but there was also a stack of stuff to go away as i'd been to busy puking to iron.
It's still annoying me 5 days on.