In all honesty, one of my former tuition students was far more
interested in drawing cartoons like this than doing his maths
problems.
Needless to say, virtually every session turned into a shouting
match as I took him to task for his lack of seriousness in his
studies. 
And yeah, I quit after one year of putting up with his nonsense
even though his mom offered to up my pay... my mental health is far
more important than any sum of $$$$.
