Never give him a link to your profile. Like wall post or battle notification. Steals are okay if you win cuz he doesn't see who.
If your dealing with BH I suggest you give in to their demands or you'll just end up stripped and potless...
Don't wall them, don't complain to someone with higher authority over them (unless their clan info specifically says no farming tolerated or whatever), don't farm back, don't get others to farm back, if they follow you, follow back, unfriend, and block. You don't want them to have a link. Of course, those don't always work and sometimes you shouldn't follow them (say when their clan sucks and they're weaker than you).
Be a better farmer. Be consistent. Be super cool under fire. Stay on ur farmer til he breaks. Show no mercy. Beg for none. Make a spy build. Pot all gold. Sell all allies. Buy some xtals. Open your farmer to wc as much as possible. Spam him open to everyones wall u can. Wait for all hits to stop and when regen hit hard and fast. Burn up pots. Steal with ur spy build. Get all the friends u can involved to attk your farmer back with you. Be ready and prepared to stay pinned for days or weeks. Be firm and do not falter young farmers. Begging for mercy is a show of weakness. Man up and fight. Don't cry about it. U lose all respect if u beg for mercy on walls. U gain respect if u stand firm and don't break or back down. The list goes on and on to be a successful farmer. RULE #1. NEVER LET UR PRIDE OR SPIRIT BE BROKEN. xj3's rules of handling someone farming you. Beat the **** out of ur farmer any way possible.