Signs to know when it is King season:
Day 1: water warms and black flies hatch. Seem harmless, ignore them.
Day 5: Black flies arrive, begin to devour human flesh. Swear you will never fish this lake again.
Day 7: you are fighting a screamer, while your wife hooks up another bag for your continuous blood transfusion, due to the flies chewing on your legs while fighting a king!
Welcome to Day 1 my friends...