Likely to be irelevant, but....
FRA 'Director' hold my 'personal best' for a speed request from an ATCO.
We were asked, whilst flying a 757, to "Please maintain 200kts to 4 dme"
When we said that would not be possible, we were laughed at.
Good job 'we' have an S.O.P. that helps to avoid these sort of incidents.....