This is made so much worse by the fact that it was on the stairs. If he had done this on flat ground - excessive and scary, but not insanely so. But on STAIRS? If he had miscalculated at all and pulled a bit too hard, he could have ended up not just injuring Nozlee but maybe even several people. Really, guy? Is letting a woman known that she "pushed" you worth causing a dangerous pile-up on the stairs? I understand why Nozlee was so rattled.
I'm sure this is not what the letter writer was expecting when she wrote in, but this is absolutely perfect advice and I really hope she follows it.