Clyde decided not to go alone.
"Mum, we're going for chips!" the Luke-with-suspiciously-longer-hair-than-five-minutes-ago said as the door was closing.
Sarah Jane had no time to object, and began picking up teenager detritus from the kitchen, exasperated. "I swear, when I find out-"
"Mum, we're home!" Luke called in a voice half an octave lower than before.
She stopped dead at the sight of them.
"I'll kill him!"
All three discreetly examined their watches, and themselves, for what might be out of place.
"Those were brand new shoes, Luke! Rani, where's your school jacket? And Clyde... what happened to your eyebrows?!"