A: Foam cools the fire and stops it from spreading.
Foam does that. Foam.
Not Silly String.
As you can plainly see, Silly String does not put out an oil fire.
As you can plainly see, Silly String spreads the fire. Alarmingly fast.
I have to admit, it was funny the way you said "Everybody chill" right before you sprayed the Silly String.
It was less funny when Dale got engulfed in flame.
Win some, lose some, I guess.