Q. Should one leave even before the start of davening to wake someone up (chessed) if requested to wake them at a certain time?
A. The proper procedure is to ask someone else, who is not as careful to be part of the first ten, to wake him up, or just get him an alarm clock.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a