Just forgot.

Joe had not meant to leave the seat up again. He had promised Mam to mend his ways but talking it over afterwards with Geraint in the railway sidings had spawned a flow of subversive mycelial thoughts that spread and advanced each time he used the bathroom.

The rails were a comforting backdrop for the boys to try on the fit and suitability of new ideas before  integration into their developing adult identities. The clatter of rolling stock, honk of diesel horns and that special click as the point changes engaged oiled the process.