30F sunny dry roads; my 7 yr old had kind of a crazy wipeout, he stood up to hammer right when he was telling me a story about building a ramp to jump his bike off when he just... fell off his bike into a shrubbery. He lay there in silence, which concerned me when he didn't wail at air-raid levels, then he said 'ow' and got up to tell me which parts hurt, then said he should have been paying attention rather than talking, and then got back on his bike and rode on the rest of the way to school. Whew