I don't think bas was being a prick or showing bad manners.
Just making some observations.
That I would say without trying to sound harsh, judging by your post on this thread are well founded.
Regardlesss of whether you getting paid or not the work should be carried out in safe way and installed in compliance to part p (building regs)/BS7671:2008.
Depending where in the UK you live, they may be certain requirement you need to carry out with respect to notification of this work. If any of the kitchen circuits are altered or new circuits/cables installed.
It is advisable if any alterations are made, that the circuit is tested to prove the installation is safe, the readings should be documented and certificates issued.
Unfortunately or fortunately depending which way you look at it, do to law changes in 2005 work in areas such as kitchens and bathrooms come under strict guidelines and could be considered no longer work to be carried out by your normal DIY person or friend.
Most electrical work within these rooms becomes notifiable. Again depend where in the UK you live.
So don't be annoyed or frustrated when someone, offers comments regarding these issues. It's your safety and your friends their family, pets, neighbours and the property's safety etc.. That is of paramount importance.
These are links to information that could apply to you