I suspect that your parents are Extrovert...some Extroverts are the type if they have a thought in their head, they must share it.
Surely you would agree, Bopper, that Extroverts are capable of being polite and minding social cues, don't you? I don't mind gabbing at all with people I don't even know, but I hate, hate, hate the idea that someone is suffering my presence and trying to 'will me with the power of their mind' to SHUT UP! So I make sure to pay attention to cues that the other person needs to end the convo.
In the interest of full disclosure, I'm ADD and I hate to have to interrupt and end conversations so there are times I avoid starting them, especially with people I know that act like Pippen's parents. Since I have, at times, stood there staring at a chatterer, screaming, 'shut up, shut up, shut up,' in my head - I assume that others may be like me. I think I've reached a point where I can tell when someone wants to be in a conversation with me or at least wants to continue a line of thought with me.
An hour and a half for a 15 minute signing session, seriously? I would have been out of there after 30 minutes whether they had finished or not.
Your parents seem quite self absorbed and apparently they do not think their solicitor/broker etc have other clients.
Yeah I agree. If you have your own car, Pippen, maybe you could just say, 'It's been great...gotta go' and let whatever professional y'all are dealing with figure out how to politely disengage from your parents. Not to rag on your parents too much, but they do seem to be quite self-absorbed in this area at least.
Arrive five minutes early and get the receptionist on-side. Explain that your parents do this and that if anybody in the office is to get any real work work today, it would be a good idea for somebody to put their head around the door after fifteen minutes and say 'Mr Jones, your ten-thirty appointment is waiting,' and to follow it up after another five minutes with 'Mr Jones, Mrs Smith is asking if you'll be much longer because she has another appointment.'
Since you've already discussed their behavior and they're not modifying it (because they don't agree with your viewpoint) this might be your best bet. I don't like the sneaking around, though, which is why separate cars and taking off might be better.
Or you could let your dog drink a lot of water and not let her go potty but insist on bring her to these offices with you!