It is true they do not have garbage disposals in the UK. They do, however, have what they call waste disposal units for sinks. And people outside the US have them. Not as many people as in the US, but they are a thing.
Here is link to a UK site which will sell them to you to put into your sink in the UK: https://www.screwfix.com/c/bathrooms-kitchens/waste-disposal-units/cat4520004
Then again, how do you know what was making the grinding noise and the shaking? For all you, I or the plants know, Crowley could have an industrial woodchipper in his back room. Or at least a personal garden chipper and shredder. They sell these in the UK. Here is a link to a site where you can buy them: https://www.mowdirect.co.uk/gm/garden-chippers-shredders
I literally thought it was a blender and was mildly surprised when he didn’t come back in holding a green smoothie.
AUUUUUUUUUUUUUUUUUUGH!!!