Always keep your cat's litter box clean
The Grim Reaper delivers his second-most unsettling blow to the Trainspotting gang via the parasite Toxoplasma gondii, when (spoiler) AIDS cuts the proverbial balls off Tommy's white blood cells. According to the Centers for Disease Control and Prevention, Toxoplasmosis afflicts more than 60 million Americans, meaning there's approximately a 19 percent chance that you, dear reader, are already among the infected.
Toxoplasma develops on undercooked and visibly cyst-ridden meat, which, we're guessing, most of you wouldn't eat. Cats, on the other hand, tend to devour birds and mice without regard for sanitation. Hence, Tommy's adorable yet ignored kitten's feces scattered haplessly around his apartment provides the nudge that topples the once active and promising young man into his grave.
Trainspotting, like the CDC, reminds us to minimize the quantity of cat poop in our residences by scooping litter boxes regularly, preferably while wearing plastic gloves, then giving our hands a rigorous, soapy scrub.