My son is in DPS, but I have to admit that SFA is also a very good school.. I've met a few teachers there (I don't know them of course), but I can tell they are very good teachers.
Actually, the school tiolets were open to parents before SARS. But after SARS outbroke, school would like to protect the health of the student, they choose not to open the tiolet to the public. Because girls tiolet is on the 2nd floor and boys tiolet is on the G/F. If those mothers needs to go to the toilet they might need to go upstairs. That will interrupt the interview schedule and a lot of strangers will be walking round the school stairs. Besides, they can not just open the male tiolet and leave the female tiolet closed. This is sexual discrimation.