i'm not sure if its me or what but i couldn't concentrate at all during physics tution.
we covered electromagnetic induction and there was this part on ac/dc.

and the tutor just kept going on and on and on about the alternating currents.
but my mind just kept playing ACDC songs. GAHHHH. it resulted in me not focusing and the lyrics just kept appearing in my head.

so it went something like:
"a diode is something that converts ac to dc... stops alternating...therefore only dc."

and somehow it will just link to something like:
"Like a wheel, gonna spin it. Nobody's gonna mess me 'round. Hey Satan! Paid my dues playin' in a rockin' band"

at this rate, i MAY actually write ACDC lyrics in the physics exam.
won't that be awesome?