[Toyota 4 runner oil and oil filter change.]

No consideration, I agree. The salespersons give me a funny look when I want to know where the filter and drain plug are, and typically they have no idea. They should be putting the oil filters topside, as on some vehicles  such as VW on select engines. At 78, still doing my own service, as lets be honest, the "technician" doing the oil changes was probably hired yesterday. 

[Leaking sunroof]

What do you mean they charged you twice? Warranty, or your fault?