Three days in Derbyshire

Shouldn't be an issue really, I have 2 x fixed bikes both with bullhorns, one has brake on left and the other on the right. I've never need to brake and attempted to grab a non-existent lever.

Yeah, but I'm worried that with both brakes I'll be coming down a huge hill, round a corner, in the wet and go for the front brake rather than the back - slip, bang, whallop...