1) The entire room was constructed with sound isolation. I have dimed that SLO and AFD through 412 cabs without waking anyone in the house at 2 AM. There’s a fully soundproof closet with an isolation cab too (Rivera Silent Sister).
2) One of the nice features of the Kahayan amp/cab switcher is an insert bus between the amp output and speakers...for an attenuator/speaker sim...like that UA Ox Box under the King Snake on the bottom shelf. Great for silent recording and practice. Why use a modeler when you can have the real thing? (Well...it’s not very portable...)
3) The neighbors aren’t really that close...
4) They are afraid of my dog.