prior to my arrival a friend asked if she can join for one night. i called the host and asked her permission to have another guest for one night. i made two issues clear:
1. she can say no if this does not work for her.
2. i will gladly pay whatever she charges for a 2nd guest.
upon the day i was leaving the host printed out an invoice for $50 asking me to pay cash for my friend. when i asked the host to process this transaction through airbnb she refused strongly. the first response was "your friend is not on airbnb" and later she said "this is my home and i choose how to get paid!".
i turns out the host does not charge for an extra person and realized an opportunity here. to make things worse the host was insulting me as i was leaving her home. in a private comment in this thread she keeps up this vibe with a comment.
as a host and guest for many years with this community - there is no room for this type of behavior. first, grabbing for extra money outside of the system of airbnb is down right wrong. second, even if you do not agree with your guest and think you were wronged - there are ways and means to communicate that to your guest and a resolution center with airbnb.
even the comment above - my friend will gladly express her position two, suzanne had welcomed both of us with a big smile and open heart. the only uncomfortable situation described above is suzanne not being able to collect $50 cash.