There’s a guy I sometimes see on my ride back home, a few times i’ve passed him & he’s drafted me for a couple of miles then sprinted past me literally about 20 metres before he turns off… why would you even bother?
Disclaimer – drafting is perfectly morally acceptable, one Friday night I was totally burst going into a headwind & hid behind a guy making good progress on the cyclepath for a good 7 miles – even going so far as not freewheeling so the noise wouldn’t give me away, it was glorious. He spotted me about half a mile from my house & gave a pleasant “oh, hello” and I burst out laughing & confessed i’d been hiding there for miles & thanked him for saving me a good 20 minutes.