Never mix the grain and the grape.
my mum said that to me, but it was the grape and hop and trust me i did test that theory many times

Never mix the grain and the grape.
- Dad had a cycling shop
He said lots of other things too but many not repeatable in polite company.
Not a dad quote but one a work mate usesIf you don't know what it is, don't put it in your mouth.
If your car is ever submerged in water then wait for it to totally fill up before you open the doors. Its only then when the pressure is equal on the inside and out that you will be able to open the doors.
My dad said the same thing when he was explaining sex.To explain the principles of a 4 stroke engine to me - "suck, squeeze, bang, blow". One I've used recently to explain the same to my step-son.