My first oil change I just kept putting the oil in and it was taking forever to fill it up. My brother-in-law looked at me and said "don't you think you should put in the drain plug back in!" Talk about feeling stupid.

One day I'll tell you about using FT LB torque specs instead of IN LB specs when reinstalling the clutch!

 

Cant say as I have ever forgot to put the drain plug in....however, today, while doin an oil change on a 93 FLH, I pulled the tranny plug, when I mean to pull the oil plug. Figgered it out after about 1 second, when the oil running out was clean. Only lost a couple ounces before gettin the plug back in tho.