Check Airman,
1. It's just the UK where pilots cannot take liquids through staff security. Most other EU countries have sensible procedures for flight crew.
2. FAs are a variable bunch at Ryanair. Many are very nice indeed, and not just to look at
I think the bad attitude is symptomatic of a lack of manners and respect in modern society.
3. Yes. Pilots are very rarely late but most FOs would leave it a few minutes before calling CC, getting the aircraft ready to go etc in the meantime.
4. That's probably not far off standard in the EU locos in the summer season, especially for someone working out of base.