Whether it’s true or not, I remember Stan Collymore - in his autobiography I think - talking about Ruddock when they were both at Liverpool.
Both were injured and doing rehab in the gym working with the physios.
Ruddock was supposedly told to run on a treadmill for a set amount of time but when the physios went off and left him to it he ran for a bit then went and sat down and ate a sandwich and read the paper.
He hopped back on a few minutes before the physios were due back and poured a bottle of water over himself to make it look like he was sweating heavily.
The physio apparently came back in and praised Ruddock for his hard work.
Whether it’s true or not who knows.