watch out for the benefit in kind police..
my golf pal works for a very very very large financial institution and uses the dartford crossing regularly for which he has a (company) dart tag which costs £1 instead of the usual £1.50
being squeaky when it comes to expenses claims after using the tag for two personal crossings he amended his expenses claim down by £2 in respect of this personal use
some jobsworth comes back to him and says that by using the tag and repaying the £2 he has incurred benefits in kind of £1 (2x 50p) and in due course will be taxed accordingly
people like this are happy in their petty little world