Yeah, funny. There are factors at play that you are not aware of. Lemme throw some light on those factors:

-I'll only ride at night if it's an emergency during the summer- like I get stuck at work, make it back to the bus station but miss the last connecting.
-The poor night vision goes hand in hand with glaucoma. Doc declared me legally blind 2 years ago.
-My hours/wages have been cut since the declaration. The wife lost her job last Friday. And there are 4 kids to feed.
-The local transit requires that anything that could fall off the bike be removed before boarding. Though I doubt an external battery pack would fall off, I really don't feel like arguing with some driver who wants to be anal about it.

EDIT: Originally stated having 5 children; in reality, wife has given birth to 5, but one lives with his dad out of state.