Do you reckon someone with a rear lever operated brake could come to a stop faster than someone riding a brakeless fixedgear, just wondering?
Assuming skidding the rear wheel is the fastest way to stop with only a rear braking mechanism (which it may or may not be - paging Tester), they'd only be able to stop as quickly as the rider with a brake, and it'd probably be harder. With a decent rear brake you should be able to lock up the rear wheel with as much weight as possible over the rear axle pretty easily, whereas skidding in that position would be rather difficult.
Assuming skidding the rear wheel is the fastest way to stop with only a rear braking mechanism (which it may or may not be - paging Tester), they'd only be able to stop as quickly as the rider with a brake, and it'd probably be harder. With a decent rear brake you should be able to lock up the rear wheel with as much weight as possible over the rear axle pretty easily, whereas skidding in that position would be rather difficult.