100cc ultra fine? Shit, that would take about a minute to push that much fluid through such a small needle - perhaps you ment 1cc (100u)? It's the needle-jockies rig of choice...
A lot of people IM ketamine, they just don't admit to it because it's "ditry" .. but it's the only way to go, and those who IM are better people, they look nicer, have better jobs, drive nicer cars, date more attractive people, smell better, and are usually of a higher moral statute then those who rail their kitty...
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PACK.MY.BEAK