I saw this at Dublin Airport today. Quite right too. People should not use escalators until they have been on the Escalator Familiarisation Course. Supervision of children is only appropriate for those who have completed, with distinction, the Advanced Escalator Course (Stage 8).
Why don't they just say "Warning: The Laws of Physics Apply", and be done with it?
I also like the presumption that trolleys can read.
Tags: Dublin, airport, safety