I solved this when I was eight
Cut scone in half. Jam on one half, cream on the other. Order of coverings is whichever is closest goes on first. Slam the two halves together, and eat while starting a conflict [*] amongst the other patrons as to whether it's said like "sk-own" or like "sk-un".
* You know it's getting bad when people start putting their tea cups down with sufficient force to make the waitresses visibily wince, and start raising voices. Who'd have imagined such drama in a tea room?