Gentlemen’s Classic Haircuts & Shaves

HATE! I have nothing but hate for this place. Hate, hate, hate!
I went in because it was $ 8 for a haircut, so I sit down and this Vietnamese guy (they are all Vietnamese working here) comes over to cut my hair. I like my hair long on the side, and it took me a LONG time to grow it out that way, so before he started, I told him:
«Listen, I like my hair long on the sides, I want it to come to about here» (and I actually physically showed him where I wanted my hair to come to). He said «ok» like he had just understood me.
But I really wanted to make sure, so I went on, «Now, all the other barbers cut it WAY shorter than I want it, but you need to keep it long.» I went on for a little while, for about 30 sec to 1 min in total, stressing the importance of keeping the sides long. He nodded and replied «ok», like he knew exactly what I was saying.
What is the absolute FIRST thing he does? He turns on the clippers, and runs it over the side of my head (yes, even the side I showed him on), cutting my hair short, negating several months of hair growth.
I stopped him right there, and I was like «Dude, you JUST did exactly what I told you NOT to do.» He looked at me with this completely blank stare, and then brought out the mirror, only to prove that he in fact had cut my hair exactly the OPPOSITE of how I had just told him. I was dumbfounded how anyone could be that dense.
I tried so hard to move on with the haircut, because what’s done was done. So I said, «Whatever, just cut the rest of the hair.» What does he do now? He continues to cut and trim around it. WTF!!! At one point, I had to put my hand over the side of my hair, and said, «Do not keep cutting it.»
Afterward, I let loose, «5 times dude, I told you 5 times!!» Then the manager Vietnamese lady said in her horribly broken English, «Don’t worry… it come back, 2 weeks.» Ummmmm, now it’s 5 weeks after, and it still isn’t even close to the length I wanted.
Never in my life have I experience such incompetence. Here is my advice to them:
«F***ing learn English… Especially words that involve cutting hair, since that’s what you do for a @#%&! living!»