Levels of Suckitude

There is no limit to how bad a pitcher could be. Take an 80 year old who can't throw the ball further than 25 feet, and he'll just walk everyone, never record an out, and his ERA will be infinite. Among those who are capable of throwing at least in the mid 80's and in the vicinity of home plate, how bad is it realistic for a pitcher to be?

I present, levels of suckitude, in ERA:

6.97: Lower 50% of pitchers who made their MLB debuts in 2008
7.01: Worst 10% of CHONE 2009 Projections
8.27: Hitters taking the mound at the end of blowouts, 1993-2008
8.55: 2009 Angel bullpen
15.75: Allen Travers, 1912 (replacement pitcher during one-day player strike)
34.50: Chien-Ming Wang, 2009

If the Angel bullpen can't do better than this, the team would be better off giving some relief appearances to some strong-armed position players, probably Aybar and Rivera.