Music Junkie's gone? That's a shame - although I'm not surprised as it was tucked out of the way and always seemed pretty quiet.
I used to be the same and worry about trying stuff out. I could never decide which i hated more; the silent shop where I'm the only person making a noise, or the busy shop with two people playing different parts of Stairway To Heaven, one metal head playing a Marshall stack at full volume, a fourteen year old playing EVH licks faster than EVH himself and a middle aged bloke (me) thumping out Seven Nation Army over and over and over.....