Per wikipedia, these Q400 planes have transported over "400" million passengers. Rich must have been the 401th million. That's a 4:01 AM talking point to share with grandma.

https://en.m.wikipedia.org/wiki/Bombardier_Dash_8

"By 2017, the Q400 aircraft had logged 7 million flight hours with 60 operators and transported over 400 million passengers with a dispatch reliability over 99.5%.[24