Segway PT i2 Getting Started Manual page 131

Never ride on stairs or through revolving doors. Riding on stairs is
extremely dangerous, as is riding on escalators and through
revolving doors.
Do not step off a moving Segway PT. Always come to a stop
before stepping off.
Do not ride in the dark. Do not ride the Segway PT in low visibility
conditions without a light. To ride safely, you must be able to
clearly see what is in front of you and you must be clearly visible
to others.
Be relaxed. Ride in a relaxed position with your knees and
elbows slightly bent and head up.
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