go to those shops where they sell EVERYTHING.. from shower caps to
power strips.. buy a crapload of roach hotels... these things let
the bloody roaches into the trap but do not let them out...
lay them all over your office..
you can then throw them away later or stomp on the traps to kill
the roaches...
or put them in a plastic bag and bring them home for
fish food..
you can get MPB to tear them open and drop the roaches into the
tank 
i've seen those b4 now come to think of it.
looks disgusting after u trap a few roaches in it.
i hate roaches. i will freak out if i see a roach nearby