Expeditedescent:
After three calls from him I eventually and for the only time had to deliver a verbal tongue lashing...
I humbly suggest that instead of using the frequency to administer said lashing, a simple '<callsign> descend and maintain...' would have conveyed the message, traffic permitting!
(also conveying an unspoken 'and shut up about it or I'll give you ten minutes of 'amusing' vectors as well...')
R1