In Bakkali v Greater Manchester Buses (South) Ltd t/a Stage Coach Manchester, the Employment Appeal Tribunal (EAT) held that asking a Muslim employee whether or not he supported IS did not amount to harassment because, given the context, the offending comment was not "related to" his religious belief or race.
In Peninsula Business Service Ltd v Baker [2017] IRLR 394 EAT, the EAT held that, for a claim of harassment to succeed in a case involving the protected characteristic of disability, it is not enough for the alleged harassment to be "related to" disability in a general sense. The claimant must actually have a disability to bring the claim.
This case is a prime example of the problems that can occur in a workplace when a member of staff is undergoing IVF treatment in a bid to get pregnant.