From Creatures Wiki
PRT: BANG (command) bang_strength (integer)
Breaks connections randomly with other machines (as if the machine had been 'banged'. Use a bang_strength of 100 to disconnect all ports, 50 to disconnect about half etc.
Hit script of the delay gate:
** Hit Script scrp 3 8 13 3 sndc "hit_" velo 0 rand -5 -10 prt: bang rand 60 100 stim writ from 92 1 endm