Did I just get mugged?

Seconds Count reaction Feat 7

General Skill
Prerequisite master in Thievery
Trigger You fail but not critically fail a steal attempt

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If you mess up, why not buy some time. When you fail but not critically fail a steal attempt, you can replace the item you are attempting to steal with an item of equal weight. The target will not realize that you failed, but will notice in 12 seconds, two turns.

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Thoughts?