From oral argument in  11-1160. FTC v. Phoebe Putney Health System, Inc.:

MR. WAXMAN: And if I could just -­

JUSTICE SCALIA: Mr. Waxman, if you don’t want to be interrupted, you have to pause between sentences.

MR. WAXMAN: I was taking a cue from Your Honor’s last argument.

JUSTICE SCALIA: I understand. That’s right.

Not pausing between sentences is a great skill of advocacy–though I’m sure it irks a Justice who wants to ask a question.