Had excitement last night.
To set the scene, I was exhausted after a full day at work event, all peopled-out from talking to members of the public (mainly children), whilst DH was exhausted after a work trip abroad and a long haul flight home that very morning.
Some time after we'd collapsed into bed and fallen into sweet sweet slumber, Mochi came into our room and there was a muffled miaow. Then, mad loud scrabbling as she tried to claw her way into the shelving unit in the corner, things being knocked to the floor etc. I went from dozy half-sleep to WIDE AWAKE, because it was clear that she'd let a live mouse escape in our bedroom.
Got out of bed, tried to look around that corner with my phone torch. Couldn't see anything apart from frantic cat. Sleepy brain decided that the logical thing to do was not disturb DH, and to simply go back to bed and worry about it in the morning and maybe I was mistaken about the mouse. Obviously, this was not in fact logical. Because obviously, I was going to lie awake freaking out about a mouse in my bedroom. Also, Mochi was not going to let the matter rest and lay staring at the corner, leaping up to do mad loud scrabbling every few minutes.
After f-knows-how-long, Mochi's scrabbling culminated in a squeak, but immediately followed by more scrabbling under my bed. Presumably she'd caught the mouse then immediately dropped it. That got me WIDE AWAKE again and as I shone my phone torch around, I spotted a little shape rushing under our bathroom door. "Victory!" I thought, "I can trap them in there and there's nowhere for a mouse to hide in that tiny room!"
So I shoved Mochi into the bathroom and shut her in. Fluff-brained creature didn't know the mouse was in there with her, so turned around and wailed piteously at the door. I realised I was going to have to go in and show her the mouse, and at the same time that if the mouse could fit under the door going in then it could also get out. So I grabbed a spare pillow, squeezed into the bathroom and trapped us all in there.
This was followed by a tangled number of actions including: Stuffing door gap with pillow and bottles of toilet cleaner/shampoo/etc; Searching for mouse with phone torch; Trying to steer cat away from her efforts to remove door gap stuffings to leave bathroom; Realising that bathroom actually has lots of places for mouse to hide e.g. bathroom scales/bath mat/toilet roll holder/bottles of toilet cleaner/shampoo/pillow; Piling all extraneous things on top of closed toilet lid; Finally pointing cat at mouse; Leaping out of way of frantic mouse; Doing all this one-handed because holding phone as torch; Dropping phone on floor; Trying to do all this quietly and without swearing.
At one point, Mochi took the mouse into the shower cubicle and "Victory!" I thought, "I can trap them in there and there's nowhere for a mouse to hide in that tiny cubicle!" - turns out a mouse is small enough to squeeze out under the gap of a shower door, leaving a desperate cat trapped in shower cubicle.
Finally, DH was inconsiderate enough to overlook my efforts at quietness and woke up. (He later said he was worried I was having a seizure 
) "What's happening?" he asked, to which I replied "Can you bring me a jam jar or something!" So he brought me a small tupperware and sensibly turned on the bathroom light.
This was followed by more tangled actions including: Re-stuffing door gap as it had had to be opened to receive tupperware; Herding mouse into suitable area for capture; Steering cat out of the way and failing because she wanted to be with the mouse; Leaping out of way of frantic mouse; Discovering how hard it is to catch a mouse when it can hide under bottles of toilet cleaner/shampoo/pillow.
But eventually I caught the poor little thing, took it downstairs and released it in the back garden.
It then took us f-knows-how-long for the adrenaline to subside and fall asleep. This was not helped by Mochi still scrabbling for ages around the shelving unit, under the bed and around the bathroom in search of her lost mouse.