The brakes get slammed on and it's only through sheer luck that Karl didn't put a hole in his car. Thankfully, the car stopped right in front of the school. On the downside, there is an unhappy redhead sending a mild leer over in Lyall's direction. "Don't." Only as an afterthought does it occur to him to add, "Please." The please doesn't come out super kindly, but it comes out, at least.