estopped

"The children played in the driveway before school. "

"After the heavy rain, the river was flooding the nearby town. "

"The old plumber worked with lead pipes in the school's plumbing system. "

"The teacher explained the new math concept quickly. "

"I went to the park because the weather was nice. "

"My neighbour has two noisy cats."

"The teacher furthered the students' understanding of fractions by providing extra examples. "

"Because the store owner told customers for months they could return items with no receipt, estoppel prevents him from suddenly requiring receipts now. "

"Joe was always complaining about the noise made by his neighbours."

"My son consistently gets good grades in math class. "

"The heavy rain impeded the children's walk to school this morning. "

"I brush my teeth regularly to prevent them from turning yellow."