How do I change a tire?

Ok so me and my girlfriend were pulled over for failure to use turn signal, the cop approaches our vehicle and immediately opens my door and tells me to step out of the vehicle and I kiss my girlfriend goodbye because at this point I know they are shipping me off to jail due to my felony warrants. The officer pats me down with brute force, I cry knowing that I will be separated from my belived. Although i believe I will learn a lesson from this, I'm currently in the back of the patrol car writing this from san antonio texas. The county jail here is rough but i'm 6'0 and weigh 180 lbs I can handle myself. But with all this being said my question is, HOW THE HELL DO YOU CHANGE THE OIL IN A LAWN MOWER? I have had the honda 150cc lawn mower for about 8 months and its due for an oil change where do I start? I lost the owners manual so don't even start with that. Plus my girlfriend is super worried like what if by the time I get out of jail the grass is 10 ft long oh no then i'm really screwed. Thanks in advance.

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