This is interesting.  I bought the World Adapter Kit for our trip through Germany&#x2F;France, and nearly every hotel&#x2F;B&amp;B we stopped at, I could literally feel a gentle vibration&#x2F;shock coming from MBP&#x27;s case whenever it was plugged in to the two-prong outlets.  I don&#x27;t know if that&#x27;s poor grounding or something else, but it was definitely unnerving and I didn&#x27;t feel comfortable using my laptop when it was plugged in.<p>But it seems the adapters are being recalled for a different issue.