Dodgy companion

My mum gave me a lovely book for my birthday, one which she has been talking about for the last year or so:

It's a beautifully written and illustrated A-Z guide to companion planting.


Here's what it says under 'B for Beer'


"There is nourishment in beer. The rinsings of empty beer bottles will be appreciated by indoor plants, plants in tubs and border plants"


I can assure you, after rolling in at 2am this morning, that none of the above applies to humans.