I see some countries do have a firing squad capital punishment for various doable crimes - like talking political stuff.
https://en.wikipedia.org/wiki/Capital_punishment_by_country
If there was a way to know there is no torture involved in the process... I mean maybe I'm overestimating my courage sitting all comfy in my armchair now, but I wouldn't mind flying to Africa, talk trash about whatever leader they have and then have a clean sudden firing squad death. However, getting tortured before the act doesn't sound very appealing.