He was doing what I enjoy doing. Fucking with a bunch of superstitious dipshits. I salute him whoever he is.
A sense of humour is a fine and rare thing these days and this fine fellow certainly has one.
Satan as a symbolic entity is very powerful and the very idea of such 'evil' holds sway over the weak minded.
This guy was having fun and has probably done it elsewhere to great effect.
When he leaves he's probably doubled over with laughter knowing he just frightened the living bejesus out of a bunch of reprobates.
All hail the 'suity devil dude! :-)