How safe are Tap and Pay mobile payments?

[SnoopZ]

I've never used a mobile phone tap and pay method until now, but I've now added my Credit Card to Google Wallet but I have some reservations about it's security in regards to accidental close tapping as there is no way to agree to any payment using a fingerprint, the payment just happens.

Am I worrying over nothing, what do you guys do, keep NFC turned off until you need to use it, this is annoying on my phone because there is no easy access to that option?

I can see scenarios where I'm browsing on an unlocked phone in a restaurant while the waiter is walking around with a card machine, I can imagine this triggering payment accidentally with them just passing the machine across the table to another person.

I can imagine a scenario where I'm walking down the street with my phone in hand unlocked and someone brushes against me too.

Think I'll keep NFC OFF for the time being.