I'm cooking for 10 tonight. 5 couples, in the group there is someone who has a nut allergy and someone who has cealiocs (I've never figured the spelling) one of the pairs have just called to say that they are doing vegan weekends to reduce their carbon impact.... They are just checking that somethung tonight will be suitable... I've said it wont but that they are more than welcome to bring stuff. ... Am I being an unreasonable arse?