The result is strangely effective. Almost all 'performance art' is doomed to become pretentious crap, but every now and then you sort of have to stare at them through those bored, patient eyes you reserve for situations in waiting rooms. It's better when you're not forced to read into these things. You can just kick back and watch someone rubbing mud on their head until they turn into a psychotic demon of some sort.
At least it's not some girl pretending to be handicapped and shoving spaghettios in her vagina in front of a crowd of NYC hipsters.