Situation–Reaction (Train about to start; little time to buy ticket):\nAt the station, your train is about to start and there is hardly time to purchase a ticket. What is the best action?

Introduction / Context:
Public transport compliance requires valid travel authority and personal safety. This question weighs urgency against legality and risk.

Given Data / Assumptions:

• Train is starting imminently.
• Ticket purchase facility exists.
• Boarding a moving train is risky.

Concept / Approach:
The sound choice is to secure a ticket first and avoid unsafe boarding. If the train departs, there are official options (next train, unreserved ticket + penalty via TTE where permitted). Intentionally riding without a ticket is an offence. Boarding a moving train elevates accident risk. Buying first maintains compliance; if you miss it, you remain safe and lawful.

Step-by-Step Solution:
1) Attempt rapid ticket purchase (counter/automatic app if valid).2) If you miss the train, choose the next available legal option.3) Where railways allow, approach TTE proactively with proof of intent (but do not rely on this as default).

Verification / Alternative check:
Some systems allow platform tickets or on-board penalties; still, safety and compliance take precedence over catching the immediate departure.

Why Other Options Are Wrong:
Travelling quietly is illegal; boarding moving trains is dangerous; informing TTE later may still incur penalties and is not best-first choice.

Common Pitfalls:
Assuming forgiveness is guaranteed; risking injury while boarding.

Final Answer:
Buy the ticket first; board only if it is safe and still available.