If overcrowding becomes intense, first class can be “declassified”, i.e. opened up to all passengers, regardless of their tickets. But there is no automatic right to occupy first class. Ad hoc declassification typically happens after other trains have been cancelled or seriously delayed.
You may also like
The Maldives can be quite pricey, so an all-inclusive
0142
Prison for both men and women located in Tenerife (Canary Islands).
069