That old hunk of garbage is FINALLY going to get some moment in the spotlight.
You seat yourself by the old Macintosh. You know this thing is going to be a pain in the ass to boot so you'll turn it on while you do other stuff.

You press the power button. The computer coughs and wheezes the moment it starts to power on. A dying man with Stage 4 lung cancer would have an easier time breathing than this computer. The most repugnant stench of burning plastic and dust slams into your nose like a fist.

You hack and wheeze right along with the computer. FUCK. Oh, god, something blasted from one of the computer's air vents got into your mouth. EUGH.
>-MENTAL and PHYSICAL HEALTH!
>MENTAL is now DOING FINE!

The stench dies down a little once the computer starts to actually boot up. You'll come back to this when it's fully powered on.
You get up, ready to start your other project today - The CIGARETTE MOLD HARVESTING! One awful smelling thing to another. Your life's GREAT.

Good thing is that harvesting it is pretty damn easy. You use the scalpel (far sharper than your pocket knife) to slice away thick, heavy layers of mold off. It reminds you of shaving matted fur off of a dog.
You collect it into several of the beakers you have. You manage to fill up two beakers to the brim with cigarette mold. This is more than enough to study.

You place the two beakers on one of the cleared out tables. You need to figure out how this stuff works. At the very least, what it actually eats.
You slice off a small chunk of mold and you place it onto the table. It squirms around on the table, trying to root itself onto the new surface. Creepy. The mold doesn't seem to bother spreading when it's inside the glass beakers but it tries to spread on the table. Interesting.

You grab some food from the daily food bundle you got. You use your pocket knife (to avoid contamination) to slice off small bits of bread and spam to see what the mold eats.
You place the samples right by the cigarette mold to see what happens.

The mold instantly latches onto the bread. It rapidly consumes the soft fluffy bread until there's nothing left.
The spam, on the other hand, seems to actively repulse the mold. It goes out of its way to avoid going anywhere near it. You move the spam closer and it scrunches away from it like it's fire.
You pull it away, it relaxes.

You test one other food source. You drop a random lego from the toy bundle into the mold.
It quickly spreads onto the plastic far faster than the surface of the table. You carefully slice away at small chunks of it to see how it's treating the plastic.

The plastic is corroding underneath the mold. Slowly but it is dissolving thanks to the mold.
Interesting. So, it doesn't eat meat (thank GOD) but it eats grains and it dissolves/eats plastic. It mostly seems to stain metal instead of actually spreading on it.

The most interesting property is that it's actively REPULSED by meat.