There's no conection between this "idea" you describe here. Nor will the "feeling" or should we say emotion which is present when the charging is done,,, be or cause someone else harm in the way you describe, sounds to me that you are thinking in a Karma like way here. Infact the aim of creating an emotion within as a sigil charger is not recomended since this is very difficult and for some other reasons which i will not enter into here.
When creating the sigil it is of outmost important, that your aim/desire is crystal clear and that it's without any doubts as to how you or any one else for that matter would presive it.
eg. It's my whish to have success
What kind of success... is it regarding work/love/economical etc.
The charging of the sigil can be done in many ways... some are more doubtfull than others and in my opinion are not worth the time and won't get you any results anyways.
The aim of a sigil is to penetrate your mind and reach your unconsiousness in order to have any effect and thus succes.
This is the true key to sigil magic.
The hardest part of sigil magic I belive is after the banishing to keep it out of ones head (IMG:
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If interested in some litteratur I can highly recomend A.O.S. approch/ method which is one of the most "simple" yet most effective way of practecing sigil magic.
Ora et labora