Raspberry Thief

You may call me the Raspberry Thief, every morning before breakfast I eat

On my fingertips, you must seek, 

red-handed evidence that it is indeed, me.

Try to stop me if you can, 

You'll have to lick my fingertips first 

before I carry out my scrumptious plan.  

But indulge me if you want, for I am still the Raspberry Thief!