oh wow... smart ladies!!

Wonder how we can bring RDA to spill coffee?
LOL! just manage to get access to said cup and.. accidently damage it slightly. just a little sanding at t he rim of the ceramic and a dribble will form. or poke some smallish holes around hte rim if a paper cup... will dripple as he driks...

lol, alternatively, get someone to tell a really funny joke and time his punchline to a sip...