I'm hard to get rid of." He smiled. All Tegan's suspicions about the boy came flooding back. "So it seems," she replied icily.
The bemused Brigadier shook his head. "You and that TARDIS.
The Brigadier had no wish to shake hands with the improbable young man in the ridiculous frock-coat.
Don't interfere!" The Doctor silenced her angrily. "I cannot will my own destruction.