I drink ants!!!!
1. Scoop that 'thing' out and continue drinking.
2. Throw away the remaining coffee and try to vomit.
For me, I will depend on a few things. First, I have to see what's that "thing" first, if just an ant, I normally will scoop it out and continue drinking.. else, I'll throw away!! Which one you choose?
p/s: it happpened to me just now, although it's just ants, but I don't know how many ants I've eaten from that cup of coffee.. arggggg....