On the whole, Bud did not greatly disapprove of that; he was too actively resentful of his own mother-in-law.

He was not sure but he might have done something of the sort himself, if his mother-in-law had possessed a six-thousand-dollar car.

Still, such a car generally means a good deal to the owner, and he did not wonder that Foster was nervous about it.
But in the back of his mind there lurked a faint dissatisfaction with this easy explanation.

It occurred to him that if there was going to be any trouble about the car, he might be involved beyond the point of comfort.

After all, he did not know Foster, and he had no more reason for believing Foster's story than he had for doubting.