eg-'My neighbour has managed to blag me into looking after her four kids after school every holiday and weekend whilst she shags the postman even though they torture my own children with vegetable knives' or 'my colleague has asked me to pick her up from her house 40 miles away from mine each morning and moans when I'm late' etc etc
A parent at the school recently mused to me how annoying it was that she had boys at cubs and beavers which meet on the same night, so she has to go to the same place at 5pm, 6pm and 7pm and how it might be nice if someone (like me) could take her older child for her. I laughed and said that I already drove my son plus two friends to cubs and have two younger daughters as well and having any more would be horrendous. The conversation was dropped, but I am sure she would have been quite happy had I said 'oh, I could try and see how it went'.
How does it happen?