Colin Furze is the gift that keeps on giving when it comes to engineering enthusiasts and content for this site in general.
His new three piece doorbell system, AKA the CFDB 500c, is the probably the most unique way of announcing your arrival that I’ve ever seen.
It works by utilizing an Uzi to spray bullets into a chute, which then drops them into a bowl that “rings” an alarm.
As cool as it is, if I saw this doorbell, I’d run for the hills…