Yes, OG, they are different, and three items stolen from one shop in a single visit would certainly be considered as one offence. I was using the analogy to try to illustrate that the concept of “rehabilitation time” between offences is not an absolute requirement that must be always be provided.
I suppose, MR, if you were attempting to evade the multiple charges in the manner you suggest you might have to plead guilty to the first and not guilty to the others, leaving the Bench to decide the matter based on your defence.
As with many things legal nothing definitive is written down about this (though there may be some case law from higher courts for the Magistrates’ guidance). The success or failure of this defence would depend very much on the individual circumstances presented to the court on the day.