First Aid nods slowly. It'd be quick and professional; with his limbs disabled, he wouldn't be able to transform or hurt anyone. He does issue a small correction, though: "I don't have a reactor, Jean," he says gently. "My fuel could potentially combust, if a line or my tank ruptured and there was an open flame nearby, but I won't explode. And cutting or crimping off the lines in my neck would be the fastest way to trigger processor shutdown, if that was necessary. My spark is behind too much armor to be easily accessible." He taps the center of his chest.