A:AnswerYes you can, just be mindful of how much you spray. Also don't shake or turn the can upside-down when spraying or a cold liquid could be released from the can and damage the graphics card.
A:AnswerI sprayed it in my mouth by accident and it tastes terrible, I'd rather die than have to taste it again. So no I wouldn't spray your cats with it.
A:AnswerI would prefer to get to the roller and feed roller to see sort of contamination there is. As the rollers are exerting some pressure, it is likely that whatever contamination there might be will likely be quite tightly stuck and comp. air is unlikely to move it. Check the owners manual and see if alcohol is allowed to clean their surfaces, always making sure that the printer is unplugged and some time is allowed to pass after using the solvent to allow it to completely dissipate - it is flammable.
A:AnswerWipe the keyboard with a damp cloth. The bittering agent shouldn't have gotten on the keyboard unless you shook the can or turned it upside down.
