After making a classic kyu mistake in the bottom left, you get a chance to punish the same mistake yourself.
(;AB[dp]AW[pp]AB[co]AB[cj]AB[cq]AB[cr]AB[fq]AB[eq]AB[er]AB[ds]AW[cn]AW[dn]AW[do]AW[ep]AW[fp]AW[gq]AW[fr]AW[gp]AB[cp]AB[qn]AB[pn]AW[qo]AW[qj]LB[qn:1]LB[qo:2]LB[pn:3]LB[qj:4]C[Black to play the joseki from the bottom left.]AP[goproblems]
(;B[op]
(;W[oq]C[CHOICE]
(;B[np];W[nq]
(;B[pq];W[qq];B[pr];W[qr];B[po];W[qp];B[mq];W[or];B[nr];W[ps];B[mp]C[White cries in the face of your influence after looking at their totally enclosed cornerRIGHT])
(;B[mq];W[qq]TR[po]C[This leaves a flaw in Black's shape])
(;B[po];W[qp]TR[mq]C[Black can no longer enclose White]))
(;B[nq]C[Also good for Black, but different variation than bottom left])
(;B[pq];W[oo]C[This allows White to avoid getting enclosed])
(;B[po];W[np];B[qp];W[oo];B[qq]C[White is fine with this]))
(;W[po]C[White may try this];B[oo];W[on];B[pq];W[ro];B[qq];W[pm];B[qm];W[pl];B[nn];W[om];B[mo]C[RIGHT])
(;W[pq]C[Variations I've seen desperate people try];B[po]
(;W[oq];B[np];W[nq];B[mp]C[RIGHT])
(;W[ro];B[oq];W[or];B[nr];W[pr];B[mq]C[RIGHT])))
(;B[po]C[Also good for Black, but different variation than bottom left]))