Since Claxton was talking, she rightly assumed he was discussing her.
He assumed rightly that the elf wouldn't stay away too long.
Hagen rightly assumed the man had no training in defensive driving tactics against possible terrorist attack.
Since he had never slept more than nine hours in his life, he rightly assumed that it was the following morning.
"Because you rightly assumed it wasn't true and your meddling could prove irksome to me."
The school choir sings to him to inspire his rehabilitation, rightly assuming he is watching.
They could rightly assume we would abandon the acceleration tube here.
We can rightly assume that money spent in this way will be more effective than imposing yet stricter requirements on cars.
South rightly assumed that a lot of good fortune was going to be needed.