How should I handle showing up at my clients house and they start yelling at me?

Sounds like a family matter, I would excuse myself and return later.

If I'm you, I would call my agency! Your client is in harm from anyone call police!! This type of family are usually don't care who you are so don't involve in family conversations PERIOD and go find another client.

What was he yelling about? If he was yelling at you, was it something you had/had not done?

What did you wind up doing? Has this happened before? Was this person doing the yelling someone who was known to you or was it a stranger?

Was there anything physical going on, or just verbal?

Dial 911 and let them listen in on the fun. Ask for help.

Yelling is common in many families.It's the way they express themselves and they are under stress.However if you feel the nature of the "conversation" is abusive or threatening toward your client or toward you you simply walk out and report them to either your supervisor or the authorities.
Never argue with a client or family ( responsible party) of client.It isn't your place to do so.

Simply leave.

I would first call the office and report the incident. If it's just angry yelling and no threatening words to you, I'd just back off. Along with the phone call, I'd put a notation of what happened on your client's sheet with as much info as possible...words yelled at clients, to you, time you called it in to office and whom you spoke to. Initial it,date it.

If you heard threatening words, no matter how scary it is, you will need to call 911, and let them decide.

No I had just let in by the wife of the person yelling at the client, then I was yelled at by the client's son in-law told me my client was crazy and a loon and need to be but away, my client is no such thing, she is a sweet lady and still has all her faculties, and is very up on thing's

OK, if it was family doing the yelling, then I guess there's really nothing you can do about it. Sometimes, in frustration, people yell. They usually regret it later, and all it forgiven. Wish we could all be saints, but we're not.

When with you, the client can showboat or be a sweet lady. When with her family, maybe she's a "loon". People who are in and out of someone's daily life really don't know all the details. Just protect yourself and protect your client from anything physical. I think you just got caught in the crossfire, they weren't really yelling AT YOU.

OP, if you're going to post a question try giving some details.

As far as calling the police, ridiculous. That can make things worse.

From your second post it sounds like it is a stressful situation for the family and someone briefly lost their cool, it can happen to anyone. It doesn't sound the SIL was yelling at you about you, he was just going off. Unless it is a common occurrence, let this one go.

You can always go wash your hands in the bathroom for a few minutes until it passes.

Now if it is that way all the time(which doesn't sound like the case) than you speak to your agency.

If the yeller is just letting off steam and the yellee is not otherwise being abused, you might be able to just say something like "Wow you are really angry - what's going on again?" or "really - what makes you say that?" it is possible the yeller simply does not understand dementia or just needs some support for the difficulty of the situation that they are not getting. If the main issue is really unrealistic expectations, you might sweet talk yourself into a chance to educate and really be a huge help to the whole family.

But that is only if you feel safe enough. It can be hard not to overreact - and start off a whole negative chain of relations with the family that will never get better - but it would be more dangerous to underreact and not protect yourself if physical harm seems like the next step.