fantome, suction is good - very healthful and tidy (at least most of the time).
Errrr......don't mean to come across as indelicate with this next one, but same thing happened on one of our riverboat casinos. Seems the plumber was a bit too ambitious with the suction setting on that "head" - was akin to the reverse thrust on a 747.
One poor woman made the mistake of flushing while she was still sitting,
and it sucked her intestines right out. She then had the presence of mind to pick up her "long dangle" which looked just like links of breakfast sausage, walk up to one of the floor dealers and say, "I think I have a problem."
The surgeons were able to stuff it back in and she was back at the slot machines in no time. What a trooper! Seems you can't keep a dedicated punter away from those jackpots....come 'ell or highwater.