Kyber wrote:
Nope, you're going to make yourself look like an idiot if you keep insisting that - you put " s' " rather than " s's " in any situation. It is not a specific rule for plurals, it is a grammatical rule which applies to any word which ends in an "s", which is just usually seen in words which are plural. To give but one example, read Harry Potter or something and look at the constant way in which Rowling writes " Sirus' " rather than " Sirius's ".

OT: Cringe application, good activity and experience in the community - I don't see why not