I don't think I've ever been briefed on how to operate the overwing exit, either on Ryanair or anyone else, however most US airlines draw attention to the fact that you must be willing and physically able to open the door if you sit by the overwing exit
Aer Lingus/Flybe/Easyjet/BMi have ALL briefed my lot over the emergency exits.
If you do any different, I don't want to be in the back the day you land in Blackpool/ Lubeck / Derry/ Altenburg / Bournemouth / Bristol or even Limoges I guess.
Could BHD be on that list as well?