The Smile Away Reformatory School is run by the Sergeant and has a "realistic" brochure. Phineas and Ferb were sent there to break their spirits and suppress their imaginations. Baljeet went along with them because he was kicked out of summer school (because his grades were "too high") and "school is cool" to Baljeet ("Phineas and Ferb Get Busted!").
Guard dogs (Possibly tan Dobermans or German shepherds, which is unlikely because tan german shepherds always have some black on them. It is also unlikely for them to be dobermans because the dogs on the show had full sized tails.)
The school may or may not actually exist as it has only been seen during a dream sequence.
There were no girls here, possibly because it was a boys only school.