The 1960s offered little stability to the family with moves to Blois, Orléans, Compiègne, Rouen and back to Compiègne, following Seel's career. This instability put further strains on his marriage. In 1968, Seel found himself trapped for four days in the besieged Sorbonne when he was sent as observer by his local Parents Association. He then went down to Toulouse where he was to check the family's new flat attached to his wife's new job in the administration. There, he was arrested under suspicion of stirring the young demonstrators. The family finally settled in Toulouse.