Following a six-month state investigation that concluded King County Metropolitan Transit was not providing bathrooms bus drivers could reach during their breaks, the transit agency made several promises. They included cleaning a troublesome portable at the end of the No. 36 -- its busiest route -- three times weekly, creating a new email address and phone line for operators to report problems, and assigning a staff member to respond to operators' complaints. Metro broke all of those promises. As a result, a new portable at the end of that No. 36 line overflowed with human waste, making it unusable for more than two weeks.