yes on the not clearing away, this goes not just for mcdonalds etc but for any obviously self clearing food area, if it says self clearing then clear it yourself!
I disagree though on the person sitting to enjoy their food. when they sat they wern't given a time constraint. they wern't told please leave aftger 5 minutes as the Bhoy family will require your seat. And they have paid to sit in just as much as you and your family. The fault lies not with the person who has opportunistically opted to enjoy their meal with sufficient space/legroom but with the lack of sufficient family seating in the 'restaurant' this is usually in my experience because half the place is taken up with some pointless and kid orientated ball pond thing -why have one of those, surely if you wanted to use one you would go to a leisure centre!
the whole noticing you are there and only having a drink left is a grey area, it could fall into the -paid to sit and enjoy drink section, but it also suggest a lack of sense, manners. so I get that.
anyhow my own PTTGOYN people who take 3 working days to reply to an email with important documents -I mean sure take your time, its not like I want to apply for a job with your place or owt is it, and its not as if the deadline is next wed is it? or that I might want to, having looked at the application pack arrange a site visit to confirm I still like the place is it?
do you know I even phoned them to check if they'd received it -despite tagging it with a ping email if it got there and another if opened and getting both back- and they had the temerity to say they already had replied? ffs.