Keygrip: My illustration of what could, and did happen, occured on a busy day with lots of RT, the pilot read back his clearance verbatim but still made the error, perhaps you are more perfect than others or perhaps in reallity you don't get out and about enough in the aviation sense?
Whirly:
It's standard procedure at our place, and many others, for the ATCO to ensure that helicopter pilots acknowledge reciept of the current ATIS before start up is given and thereafter the squawk is given prior to taxy clearance. This hopefully leaves you with ample opportunity to do what you have to do.