Lauren, Carys and Anya are friends but have very different views when it comes to smoking in parks.
Carys, Lauren and Anya are taking a well-deserved lunch break in a park in central London.
They get on really well, until you mention smoking.
We've been asking them what they think about a report which is calling for London to ban smoking in parks and public squares, like New York.
And just before the rest of the UK writes this article off as a "London issue, if this scheme is a success it could be rolled out across the country.
So, back to the girls. What do they think?
Twenty-four-year-old Carys Knight from Nottingham told Newsbeat: "I would be all for banning smoking in parks, because nothing good comes from smoking.
"When people walk past you and they're smoking it really does take you back. Smoke elsewhere!"
Carys is sandwiched between her two friends. From their faces, it's clear they don't exactly agree.
Lauren Butler, 26, from Newcastle, says: "If you don't like it, move yourself away from the situation.
"In the summer you go to the park for picnics, to sunbathe and socialise with your friends and if it's a sunny day you want to have a ciggy. You can't ban it."
Carys decides to fight back, arguing: "It's all about being considerate of others. I don't like the smell. And what if people are eating or are with their children?"
But 23-year-old Anya Spencer Peet from Surrey is far from convinced, adding: "You can't smoke anywhere nowadays, you go to a pub and you have to go outside.
"Where else are you meant to smoke? It's a park, it's in the open."
Carys is clearly outnumbered, but stands her ground: "I know it's a park so it's outside, and I understand why these two wouldn't want smoking to be banned, but I just don't like it."
Over on the Newsbeat Facebook page, external, quite a lot of people agree with Carys.
Elliott-Skills Besty-Kohan says: "It's about time, smoking should be banned in all public spaces. I should not have to inhale that poison or have it touch my food when I'm out and about."
Kelly Rendall thinks banning smoking in certain areas of parks would be more effective to a full-out ban.
She says: "Our local play park has banned smoking so parents have to go outside the fenced area to smoke. It works."
However, plenty of people agree with Lauren and Anya.
Sue Pemberton argues: "It's ridiculous. Police are overstretched as it is. Passive smoking in the open air really isn't an issue to be getting het up about."
Rachel Chapman agrees, claiming that when it comes to healthy living, other things are more harmful: "This is London. I'd be more concerned about petrol and diesel fumes, not a miniscule amount of tobacco smoke you may inhale if you walk too close."
Finally, Ange Coxy suggests smoking should be banned in other areas instead: "Smoke is avoidable in parks. What I don't like is smokers in busy places, high streets, markets and bus stops. Areas that non smokers can't really avoid."
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