YSK: If you are abroad and think the police want a bribe, ask if there is a "fine" you can pay, instead of asking them how much they want.

If police stop or detain you without a good reason and you think they might want a bribe, asking them for a fine is safer and easier than asking them how much they want outright. This way, you avoid the risk of offending well-meaning officials, while not letting them know whether you are aware they want a bribe. It also means they are more likely to ask for a lower amount, and won't try and negotiate with you.