"A train is just: get in/get out" - alas, not really. High-speed AVE trains in Spain are subject to security checks with you/your luggage going through the scan

"A train is just: get in/get out" - alas, not really. High-speed AVE trains in Spain are subject to security checks with you/your luggage going through the scanners. Fortunately, no need to take out laptops, throw water away, put liquids in a transparent bag and other nonsense.