.. and you ignore their requests, that you then lose the right to be upset when they (understandably) lose their temper with you.
Had a nightmare of a day yesterday.
Bit of background - DH has only fairly recently passed his driving test, he is a good driver but obviously a more experienced driver will find some things easier.
Anyway, we went to see MIL yesterday and while seeing her we were going to go see DH's aunt who was in the country for a short time and hadn't met DS yet.
So DH drove us to see his aunt, MIL was meant to be giving him directions to where his aunt was staying, but (quite helpfully) MIL pointed out the road we needed to go down - as we drove past it. 
So we had to go an alternative route. The problem with the alternative route was that approaching the road from the other end meant that we were driving against a busy bus route. And the road was parked up on both sides with very few places to pull over.
Of course, sods law says that a bus was coming the other way and DH had to find somewhere to pull over. The only space was barely big enough for our car, and while DH can parallel park, he's never tackled a space that small. So he was struggling.
All the while the bus was creeping closer and closer to our car. And MIL was sat on the back seat making a fuss, saying helpful things like "this is why I don't drive up the road this way", or "you shouldn't have come down the road this way". Ignoring the fact she was the reason we went that way.
Eventually DH realised he just wasn't going to be able to park the car, so asked me to take over. As I ran round to the driver's side, the bus driver let a passenger off who decided to start having a go at DH. Despite both DH and I telling him to go away and pointing out that I was going to move the car, he insisted on following DH around the car. Meanwhile MIL is yelling at DH to "just leave it", as if she thought he was going to hit this bloke! (Not a chance)
So, I get the car parked, the bus goes past and DH and I breathe a sigh of relief.
Except MIL wouldn't drop it. She just kept going on and on at DH, who asked her to stop and give him some space. We'd got out of the car at this point and were walking towards where the aunt was staying. But MIL wouldn't leave DH alone, despite him repeatedly asking her to leave it.
Eventually DH said he'd had enough and we were going home, so went and got in the car. I told MIL that if she went ahead to the aunt and gave DH a chance to calm down then we'd be along in a few minutes. But that wasn't good enough for her. She started pleading with DH to come right away. Despite him asking her to just give him space, she instead kept going on and even tried to open the car door to get him out. Eventually he lost his temper and told her to "fuck off". She still didn't. She just turned to me and asked me to come in and leave DH in the car. I pointed out I wasn't leaving DH while he was upset. So she went back to pestering DH. She went on and on for about 10 minutes, switching between pleading, trying to guilt trip him and getting angry with him, until DH screamed at her to go away. Only then would she go away.
By the time she left DH burst into tears with frustration. The last thing he wanted was to yell at his mum, but she just wouldn't give him any space.
We did eventually go and see his aunt, but unsurprisingly we told MIL that we weren't giving her a lift home (she could get home easily anyway).
So anyway, after all that, WHBU?