Behind Bars

Mum: Alice! I just found these under the armchair. Do you know anything about this??
Me (thinking fast): Er….no! What?! 
Mum: You chewed and possibly ate stamps with cute farm animals?? Where did you find them?
Me: Well, they were just lying around and I LOVE things with lickable glue! You shouldn’t have left them on the table! 
Mum: …….
Me: Sorry…. (not)