Conversation so far:
when did skinny puppy's live performances begin?
(1987-1988).
who were part of this band?
Key cutting steel with an angle grinder.
what is the high light of their live performance?
using fake blood during their performances.
what kind of response this had with the audience?
promoters began to ask the band to refrain from using fake blood during their performances.

Question: what  other interesting information about their live performance?
Self-contained rewrite: Other than using fake blood, what other interesting information is there about Skinny Puppy's live performances?