Lol, Megalol. This is normal DEPENDING on what guitar/pickups you're using. Please mention your gear.
I tracked this 'Nu-Metal meets RATM' band who used a chinese Gibson ES-335 semi acoustic clone. Yes, there were leakage from my monitors but I was pretty impressed with the end results.
Points to be noted:
1. I phase inversed the output from my monitors while tracking to prevent phase-cancellation Clips to be posted soon!
2. There are NO RULES in audio production. If it sounds good, it sounds good. Period.
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Edit: If you're using a solid body guitar with conventional active/passive pickups meant for Metal, chances are you need better electricity.
actually i think we have electricity problems in the studio.
i run from preamp to audio interface to pc.
how can bad electricity cause problems when recording?