Hi, I hope you don't mind me dropping in.
Tim and his girlfriend showed up unannounced at around 10PM.
Mind your own business.
Business before pleasure.
A: Hi Sam, hope you don't mind me dropping in unannounced.
B: Not at all, come on in.
A: I was just passing by and thought I'd take the opportunity to invite you over on Friday evening. I'm having another barbecue followed by a few drinks by the pool.
B: How can I resist an offer like that? Would you like to stay for coffee?
A: I'd better run, but thanks all the same. Oh, before I go, there's just one thing. Could you not bring your dog this time?
B: But Charlie and I go everywhere together.
A: I know, but remember last time? He knocked over the barbecue while chasing my cat, and then did his business in the pool.
B: OK, if you insist.