I mean it all depends on what you negotiate, but I would generally recommend 50/50 as that reduces tensions (assuming both of you are doing about the same amount of work or bringing the same amount of value to the table (one might bring money the other time or something like that).

Feeling the tension on my poor pregnant wife, I call a surveyor and schedule immediately and text the neighbor live in landscaper that I’m sorry if I’ve offended and that it’s scheduled asap .

They make good money but are rent controlled, so I have some tension filled relationships with my tenants. 

Conventions in the Orlando area are canceling left, right and center, because of the immigration laws just passed, because of the tension of the whole LGBTQ thing and whether you are a supporter of the present Governor or not, is really irrelevant to this, my problem, because this is what is happening in this area.In 6 years of owning this house, I have never NOT HAD the house booked for July 4th weekend, labor day weekend, Halloween weekend.

Make strides to preemptively prevent roommate tension.

Some of these strategies are due to family tension, and hence there's no way around it.

There are some who do, but they usually have a specialty that deals with all sorts of homeowners; for example, I had to have a tension spring replaced on a garage door at my house where I live, and the repair guy said he accepted credit cards.

One benefit is that they put so much tension on my ignition that after a while, I'm able to start my vehicle and then remove the key while it's running.

In fact, they will be standoffish and resistant to your overtures which will create tension and unnecessary frustration.

On the other hand it's that constant tension when you get the inevitable bad tenant/neighbor that sucks and makes me dread walking out of the door for fear of running into one of them.