helpfully

adv

1. In a helpful manner.

   “The chap opposite seems to be trying to pull a fast one, and having seen the guard is trying to buy a ticket online... but doesn't succeed. The guard helpfully sells him one, but not quite at the price of one purchased in advance. In fairness he doesn't kick off, nor does the guard treat him like some common criminal. It's a fair cop - or should that be a fare cop?”