Dopes Anyone Else Dislike How The Odds on Predictions Work

Occasionally for fun I'll play with predictions. I like trying for the long odds. What I hate about it, is how when I enter with a risky prediction at say a 4x factor, that once I've confirmed the odds have changed to a point I never would have entered. Anyone else feel the same way, that odds should some how be locked at the time you entered?

I understand how the odds are calculated and it's a net 0 game, but just seems wrong to have them change after you have already committed. It's like betting on a sports game and the bookie changing the odds on you after you have already locked in your bet.