"I have a theory, 99..."

Setting: Liz's trunk

Characters: Mouse/mice and/or accomplice (Shadow?)

Plot:

Justin and Liz set pair of semi-permanent mousetraps in Liz's trunk. Traps are carefully baited with peanut butter and set in no-mess mouse-removal Amazon boxes.

Liz goes on about her life, working around, forgetting about, and generally ignoring mouse removal boxes and inner traps.

Until. Liz has to use her trunk on a particularly taxing errand day and finds (gasp) mouse droppings and shredded cardboard. With very audible sighs and mutterings (unaware of the lady watching from her open truck window feet away), Liz grasps that mice have returned.

Justin and Liz return to reset pair of semi-permanent mousetraps in no-mess mouse-removal Amazon boxes.

Justin inspects mouse removal box #1--it is clean as a whistle, including the "cheese" tab where the peanut butter used to be. This is no "mouse-removal" box. Just a box.

Justin inspects mouse removal box #2--THERE IS NO TRAP. There is no mouse. There are poops and cardboard shreds galore.

Whodunnit?