Vin Diesel was riding his bike at the speed of light when a man asked him for a lift. Vin Diesel stopped for him to hop on and continued riding at the speed of light. After a while the man asked. Man: ""So what's your name?"" Vin: ""Cin Diesel"" Man: ""Don't you mean Vin Diesel?"" Vin: ""No it's Cin Diesel"" Man: ""But why?"" Vin: ""Because at the speed of light c=v""