A committed trade unionist of more than 30 years standing, Dave has always been in at the sharp end, defending his members against attacks on their pay and conditions.
His sense of fair play, compassion, and his strong work ethic, were honed in the streets of Leeds where he was born and brought up.
Prentis speaks softly, rarely expresses an opinion that is not strictly related to his job, and his slight physical stature is testimony to the fact that he eats sparingly.
His total salary and benefits in 2010 came to just over £101,000, plus £32,818 paid into his pension pot.
So this frugally-living Union boss is well placed, having such a sense of fair play and compassion, to apologise for aiming a sneer at a young Lady who cannot answer back for herself.