Any player could start trolling the others at any time:
clarinetist-- play loud, continuous lyrical lines that noodle around whatever register the trumpet happens to be playing in
trumpet-- play continuous arpeggios
trombone-- play ska-style double-timing off-beats
tuba-- no roots of chords allowed. Bonus for playing continuous dotted quarters :)
Any combination of any of the above trolling will sound bad.
