Is your friend coming to your house, or is Izzy going to your friends house?
I had my parents come over to my place while hubby and I went out the other night, and she took the bottle from my mum. This was at my house and I havent tried giving her bottle somewhere else. Maybe she might be more comfortable at home rather than somewhere else? I dont know. Sorry.

hmmmm but you have just reminded me I should go to the dentist. Its been over 2.5 years... norty I know.