Theo,

Just a side note. We have HBG in our 0.5 acre pond in SE Michigan. They have been know to nibble swimmers on occassion. They will nibble on toes as we climb up the swim ladder. Last summer my son had some High School Seniors over and two of them came out of the pond with sore nipples. One of thme was bleeding even. Now it must not of hurt that much cause everybody was laughing. We also have perch, bass and catfish but I don't think it is any of them doing the nibbling.

Its not how well you do something,
Its how well you look doing it!