Everyone does.
Those that want to enhance credibility, and....
Those of us that wish to discourage incredulity lol....
[Rimmer is drunk and determined to reveal how many times he’s had sex]
Rimmer: Once.
Lister: Smeg.
Rimmer: One time only.
Lister: [Covers his ears] Don’t tell me this Rimmer. You’ll want to kill yourself in the mornin’.
Rimmer: Yvonne McGruder. A single brief liaison with the ships female boxing champion. March 16, 7.31p.m to 7.43p.m.
Lister: Please.
Rimmer: Twelve minutes.
Lister: Please.
Rimmer: And that includes the time it took to eat the pizza.