... Yeah I am dishonest so thieving isnt a problem.
I never actually think about looking in alchemy shops, that is I ask the seller ...
You are a thief and you go into shops when they are open? I expect you actually buy things with money too. You maybe need to go and have a chat about your personal values with Delvin, Vex and the crowd down at the guild.
P.S. Just about the only shop in Skyrim that I haven't burgled is the Drunken Huntsman in Windrun, and that's because the chap in there treats me nicely - he calls me his "Khajiit friend" (isn't that sweet).