Title says it all.
When I was younger (like 10 or 11?) I remember my parents, sisters, and about 6-8 other members of our family went to see the Lion King (theater performance). We went to some restaurant in Boston after the show. Needless to say, it took about 15-20 minutes to place our order (after we determined what we all wanted) and then it took somewhere between 75-90 minutes for the food to come out...the restaurants wasn't really that busy either.
It was horrible.
EDIT: I believe we had a party of 11...big but not 90 minutes big.