
Paranoid guess: The mouse knows that when the tub reaches a certain weight, food will be released via the wire/string contraption seen behind/above the tub.
Projected paranoia guess: There is food in the tub and he is burying it to prevent other mice from stealing his stash.
( , Fri 31 Jul 2020, 19:20, Reply)

man is repairing his mechanical mouse trap invention laying all the intricate parts out in order of extraction ready for later reassembly but every morning finds them mysteriously mixed up in a tub so sets up camera to find out why
later makes his millions with an idea for a board game that is fun for all the family
( , Fri 31 Jul 2020, 20:29, Reply)

The mouse is participating in a scavanger hunt to win a Million dollars from an eccentric millionaire.
The mouse's opponent is his friend the cat.
Plot twist, the cat's list includes the item: mouse
( , Fri 31 Jul 2020, 21:11, Reply)

But instead, the owner keeps throwing money at it finding crueler and crueler ways to prolong its life.
( , Fri 31 Jul 2020, 21:56, Reply)

en.wikipedia.org/wiki/Mouse_Trap_(game)
( , Fri 31 Jul 2020, 22:09, Reply)